The Kelsey Blog – Page 26 – Behind the Scenes at the Kelsey Museum of Archaeology

From the Archives — June 2016

Apologies for the tardiness of this post …

BY SEBASTIÁN ENCINA, Museum Collections Manager, Kelsey Museum of Archaeology

Though the summer months see a drop in university class visits to the Kelsey, the museum is by no means less busy when classes are not in session. Researchers who are students and professors here at Michigan, or at other universities around the world, take a break from their teaching responsibilities and make their way to the field and museums to continue their research. The Kelsey hosts a fair number of these scholars. Projects we did not have time for during the academic year are saved for the slower summer months.

As to be expected, the site of Karanis garners much attention from researchers. Every year we have numerous people come to study our collections on this Graeco-Roman site, or the archives that still contain a depth of information waiting to be revealed. This summer is no different, as Karanis has been the focus of an ongoing trial investigation by a group of Michigan scholars. Headed by Dr. Arthur Verhoogt (Classics) and Dr. David Stone (Kelsey Museum), a team has been assembled to determine what it would take to finally digitize, in a controlled and consistent manner, the entirety of Karanis holdings. This includes all the artifacts excavated at Karanis and brought to Michigan, but also all the maps, and archives, and photographs. Over the years, we’ve digitized some of the items, but only specific ones and only as requested.

This team, which also included graduate students Alexandra Creola (IPCAA), Caitlin Clerkin (IPCAA), and Lizzie Nabney (Classics), undergraduate students Emily Lime (Classics) and Mollie Fox (History of Art), professors Brendan Haug (Classics) and Laura Motta (Kelsey Museum), staff Sebastián Encina (Kelsey Museum) and Monica Tsuneishi (Papyrology), has decided to approach the site in a new manner. Previous research and publications have focused on material types. We have publications on the coins of Karanis, or the pottery, or papyrus. Instead, Drs. Stone and Verhoogt want to look at the context of the finds. How did the papyrus relate to coins found within the same space? What does a figurine found alongside a spindle whorl tell us about the inhabitants of house C56?

Over the past two months, students Mollie and Emily have been busy finding, cataloguing, and digitizing items from two contexts, C65 and C137. The team decided to focus on these two structures as they seemed of great interest due to their contents, and also because for a two-month trial project, looking at anything more would have been impossible. Mollie and Emily spent time going through the archives and identifying materials that related to these two structures (one house and one granary). They were then pulled, entered into a project-specific database, and eventually scanned or photographed. Among these was a 32-foot-long map that showed a cross section of Karanis which we are excited to finally have scanned!

The project was generously supported by the Michigan Humanities Collaboratory, an endeavor funded by the Office of the Provost that seeks to bring together people from separate departments to work together towards a single goal. Several projects were funded for this summer term, including this Kelsey-Classic-Papyrology project. We hope to turn this trial period into a much bigger one, where the entirety of Karanis materials are digitized and made available to researchers freely. By doing so, researchers can approach the materials in their own way, without hindrance. At the conclusion of the two year project, we will have a better understanding on what we have here in Ann Arbor, a web portal will be in place for ease of research, and there may be publications and an exhibition. While students continue to digitize and catalogue, graduate students and faculty will analyze the materials to make better sense of the spaces and what is possible with what we have on hand.

While it is easy to get excited about what the future will hold, there is equal buzz about what has been found already. Mollie and Emily have scanned the 32-foot map, which is amazing, but they have also found photographs and archival materials we have not seen since the 1930s. There has been closer inspection into the artifacts, what they tell us about the citizens of Karanis, and the decorations found on objects and on walls. A sample of these is shared here, so that we can look anew at a place we members of the Kelsey community know so well, yet we continue to find new ways to see it.

 

 

This summer has proven to be busy in the Kelsey Registry. This project has meant a steady stream of people in the office every day. Every computer is occupied, every free space taken up by archives or artifacts. But this busy-ness has generated an energy and excitement about what we can do with Karanis. There are endless possibilities, and we will keep busy this summer thinking about those and working to make them a reality.

Check out the Karanis Collaboratory website for more information about the project: http://sites.lsa.umich.edu/karanis-collaboratory/

From the Archives — June 2016 Read More »

Ugly Object of the Month — June 2016

BY CAROLINE ROBERTS, Conservator, Kelsey Museum of Archaeology

This month’s Ugly Object, a blown-glass vessel from the Fayum region of Egypt, wasn’t meant to be ugly. If you look past its flaws, you’ll notice the vessel’s attractive shape and the carefully applied strand of glass that spirals around its neck. It actually could have been quite pretty, had not an unfortunate accident befallen it during manufacture.

Ugly_June_01
Glass vessel KM 5073, from the Fayum.

I can imagine the moment when it happened: the glassmaker had just transferred the vessel onto a pontil (the metal rod used to shape the glass) and was working on finishing the neck. Somewhere in the transfer, or in the process of wrapping the strand of glass around the neck, the glassmaker’s sleeve or glove might have grazed the surface of the vessel, sticking to the soft, semi-molten glass and tugging it out of plane. The moment is captured in the twisted, pinched deformity that marks the vessel still. This vessel isn’t alone — the Kelsey is home to a number of flawed glass vessels. Together they give an impression of the speed of manufacture that produced thousands of objects like these. A mistake or two would probably have been considered run-of-the-mill.

Ugly_June_02

This vessel and its flawed friends will be featured in Carla Sinopoli’s upcoming exhibition Less Than Perfect, opening at the Kelsey Museum on August 26. Be sure to pay them a visit!

Ugly Object of the Month — June 2016 Read More »

From the Archives — June 2016

BY MELISSA SOMERO, Graduate Intern in Kelsey Museum Registry

Hiding out in the Kelsey Museum Archives for the past semester I have come to appreciate the variety of documents that are housed there, such as those pertaining to the history of the museum, including Francis Kelsey and his expeditions, as well as excavations carried out by the University of Michigan. Perhaps some of the most interesting finds were the many photographs by George Swain documenting Francis Kelsey’s expedition to Europe, Near East, and Africa from 1919 to 1920. Kelsey’s expedition was documented by the Dangerous Archaeology exhibition, which also chronicled the history of archaeology in the Near East. It was from this collection of George Swain photographs I have chosen to highlight the photos from Syria. Swain gives us a rare glimpse into the lives of everyday people and refugees in the early part of the 20th century, as well as beautiful archaeological sites.

 

KS089_02
Aleppo, January 9, 1920: “Friday bazaar. Part of the crowd that gathered around the car.” (KS089.02)
KS087_02
Aleppo, January 9, 1920: “Friday bazaar. Copper utensils in the foreground. Then the crowd, with some of the citadel in the distance.” (KS087.02)
7_0193
Aleppo, January 7, 1920: “Line-up at the entrance to the A.C.R.N.E. eye hospital, on the sidewalk. Dr. Tenner at right of door in back row at the left — man with moustache.” (7.0193)
KS079_01
Aleppo, January 7, 1920: “The exterior of the inner entrance to the citadel, with a part of the inclined bridge over the moat.” (KS079.01)

 

Cirkut005
Aleppo, January 8, 1920: “View of Aleppo from the roof of the Hotel Casino, the headquarters of the A.C.R.N.E. (later, Near East Relief). The railway station and modern part of the city are at left. OId part of the city at the right, and beyond this the rise of the Citadel. The low building in the left distance is a barrack. Note that house roofs are built nearly flat so as to collect rain water. A stream, not shown here, runs through the town from right to left. Size, 9 1/2 x 24 in.” (Cirkut005)

 

The panoramic photograph is from a collection of Cirkut photographs in the Kelsey Archives, some of which are on display in the main entrance to the Museum. In Aleppo, the Citadel, which dates back to the 13th century, rises above the city and remains a testament to the ingenuity and prowess of ancient civilizations but is also a reminder of nations at war with its impenetrable walls. The Ancient City of Aleppo and its Citadel are now a UNESCO (United Nations Educational, Scientific and Cultural Organization) World Heritage Site, it is through this international body, which seeks to promote awareness and protection of important cultural sites, that many other sites have been saved and began to promote a thriving economy to the area.

 

7_0203
Aleppo, January 8, 1920: “Aleppo and its Citadel, seen from the roof of the Hotel Casino, A.C.R.N.E. headquarters.” (7.0203)

 

KS080_05
Aleppo, January 7, 1920: “Citadel, a nearer view of the moat and entrance bridge.” (KS080.05)

 

Although for many archaeology in the early 20th century stemmed from the desire to seek out objects for personal glorification, it is clear that Kelsey began a career in the field for educational and humanitarian purposes. Kelsey was not only an explorer and archaeologist but was also involved with the Red Cross and his foray into Syria is documented by the many photographs taken of refugees of the Armenian Genocide.

7_0198
Aleppo, January 7–9, 1920: “Some of the 1500 orphans in the Armenian orphanage. Taken in the courtyard.” (7.0198)
7_0202
Aleppo, January 8, 1920: “The driver Zacke, two views, front and profile. Ethnic types. This is the driver that took us to Aintab, and who six weeks later, with Mr. Perry, was killed on the road.” (7.0202)
7_0200
Aleppo, January 7, 1920: “Armenian housekeeper. Two view, face and profile. Ethnic types.” (7.0200)

 

Because of people like Kelsey, the field of archaeology has not only introduced people to new cultures but has created a thriving enterprise that seeks to unite us in our common heritage. Along with the help of photographers like George Swain we may not only see the stoic archaeological remnants of past cultures but see the living ones that surround and add value to the ancient.

Lastly, I leave you with the images of the ruins of Baalbek which can attest to the grandeur of the structure and the beauty of the intricate design. It is clear from these images that there was a thriving artistic community which is indicative of a prosperous society.

 

7_0212
Baalbek, January 13, 1920: “General entrance to Propylaea and present entrance to ruins. Mrs. Kelsey and Mrs. Norton near top of steps. Ancient steps to Propylaea missing.” (7.0212)
7_0218
Baalbek, January 13, 1920: “Corinthian Columns, Temple of Bacchus.” (7.0218)
7_0221
Baalbek, January 13, 1920: “Great portal, entrance to the Temple of Bacchus. Note the keystone of the flat arch of the lintel. Now held securely in position.” (7.0221)

 

*****

Guest contributor Melissa Somero is a graduate intern this semester for the Kelsey Museum Registry. She earned her Master’s degree from Eastern Michigan University in historic preservation. While Melissa has assisted with multiple projects, her focus for the term has been the Kelsey Archives.

From the Archives — June 2016 Read More »

Unwrapping the Karanis dolls with micro-CT scanning

BY CAROLINE ROBERTS, Conservator, Kelsey Museum of Archaeology and             JANELLE BATKIN-HALL, Graduate Intern in Conservation

Janelle Batkin-Hall, graduate intern in the Kelsey conservation lab, has been taking a closer look at the Kelsey Museum’s collection of dolls from the Romano-Egyptian city of Karanis. The dolls vary in type, but many consist of fabric bundles, some of which are wrapped around small rocks or shaped bone. Her research is to determine what the dolls are made of and what they were used for. To answer these questions, Janelle has examined the dolls using different forms of imaging, including micro-CT scanning, a technique used by scientists Basma Khoury and Dr. Ken Kozloff in the University of Michigan Orthopaedic Research Laboratories.

Photo_01
Janelle (left) and Basma load the micro-CT unit.

Ms.  Khoury and Dr. Kozloff visited the Kelsey Museum to take a look at the dolls and determine if they would fit in the micro-CT scanner. The micro-CT is normally used to study small mammals, and luckily the dolls Janelle wanted to examine were roughly the same size. Janelle and the Kelsey’s head of conservation Suzanne Davis transported two of the dolls to the A. Alfred Taubman Biomedical Science Research Building, where Ms. Khoury scanned each artifact for over two hours.

Photo_02
The Kelsey doll in the micro-CT unit.

Doll 1966.901.113 is made of what appears to be a polished piece of bone inscribed with eyes and eyebrows and wrapped in linen. Dyed animal fiber is attached to the top of the bone piece. Janelle was interested in visualizing the piece of bone, since most of it is obscured by the linen. Ms. Khoury captured images of the surface of the bone and a number of inscribed lines that are normally obscured by the doll’s linen wrappings. She also observed that the bone piece lacked the microarchitecture of bone, and is rather some other kind of material — possibly wood.

Photo_03
Micro-CT scan of the doll’s shoulder.

We’d like to thank Basma Khoury and Ken Kozloff in the Orthopaedic Surgery and Research Departments, as well as Suzanne Davis and Terry Wilfong for their help in facilitating this project.

Unwrapping the Karanis dolls with micro-CT scanning Read More »

Ugly Object of the Month — May 2016

BY SUZANNE DAVIS, Curator for Conservation, Kelsey Museum of Archaeology

This month’s Ugly Object, a flute, is in honor of my mother, who is a lifelong flute player. May is her birthday month, and she has been playing the flute (and piccolo) for approximately sixty years this month.

Flutes are some of the very earliest musical instruments, and the Kelsey has several. This one is made of bone and it would have been played by blowing into the end. It was discovered in 1929 in a temple at Karanis, Egypt.

 

 

It is obviously not fancy, but it’s nice to think about people enjoying the music it made so long ago. You can see it on the first floor of the Kelsey Museum, in the case devoted to University of Michigan excavations (see the map below). It can be found in the bottom drawer of that case. If flutes are your thing, you can see another one in the Karanis House area (Graeco-Roman Egypt Gallery) by exploring the drawers.

 

map with flute

 

Ugly Object of the Month — May 2016 Read More »

From the Archives — May 2016

BY SEBASTIÁN ENCINA, Museum Collections Manager, Kelsey Museum of Archaeology

In a little less than a month, the Kelsey’s latest exhibition, Leisure & Luxury in the Age of Nero: the Villas of Oplontis Near Pompeii, will, sadly, come down for good. This was the Kelsey’s most grandiose exhibition to date, the culmination of several year’s work and planning. For this exhibit, the Museum borrowed just over 230 artifacts from the ancient villas at Oplontis, many of them out of Italy for the first time ever, only a few ever even exhibited previously. This endeavor was a major undertaking by the Kelsey, spearheaded by curator Elaine Gazda, with the assistance of many staff. Reactions have been overwhelmingly positive and reassuring that our efforts were well worth it.

The exhibition showcases beautiful artwork from Roman times when Vesuvius erupted in AD 79. These were covered in ash for nearly two millennia, awaiting discovery but perfectly preserving spectacular sculptures, frescoes, jewelry, and daily household objects. With this exhibition, Professor Gazda shows the contents from two villas, and what life was like at the time. Come mid-May, the exhibition will begin its journey to two different museums in the US, and with that these beautiful objects will be gone.

But friends of the Kelsey are well aware that once Oplontis leaves the Kelsey, we will still have beautiful artwork from Pompeii on display. The Barosso watercolors, the 1926 replicas of a room at the Villa of the Mysteries in Pompeii, are still visible in the Upjohn Exhibit Hall, in their own special room. These watercolors will be with us past the current exhibition, allowing visitors to gaze upon the level of craftsmanship not only of Maria Barosso, but of the original Roman artists as well. This space is a highlight of the collections, a must see for any visit to the Kelsey.

What some of our newer friends will not know is that the watercolors were not always on display in such a space. In fact, the artwork was rolled up and put away in storage for the majority of its life. In 1926, Maria Barosso painted these at the behest of Franics Kelsey. They were soon put on display in Italy under the auspices of Benito Mussolini, then rolled and shipped to Michigan, where they lay dormant for over 70 years. Throughout its history, before the construction of the Upjohn Exhibit Hall and its opening in 2009, the Kelsey simply did not have the space to properly display these paintings. They were too large to display in the spaces of Newberry, and the building did not have the proper climate control and lighting to safely exhibit them. Instead, they were kept in a locked cabinet in collections storage where they teased potential use in an unknown future.

This month’s “From the Archives” reminds some of our longtime friends, and brings to light for our newer friends, an endeavor to have these out for view. In 2000, Professor Gazda curated the exhibition The Villa of the Mysteries in Pompeii: Ancient Ritual, Modern Muse. This was the Kelsey’s first successful attempt at having the watercolors out and visible, not just locked where no one could see them. However, even then the Kelsey was not able to show all the panels as they should be viewed. The temporary exhibition space, where the current gift shop is now located, was simply not large enough for all the panels. In order to do this, the Kelsey had to partner with the Museum of Art. This exhibition was a multi-venue show, with part on view at the Kelsey, including some complementary artifacts and the full-size mirror group panel, and the complete room on view at the Museum of Art.

The Kelsey archives do not only contain the history of the archaeological excavations and forays into Europe by Kelsey and Swain and friends, but we also maintain the history of the Museum into modern times. Every exhibition we have put on is carefully recorded, making it possible for us to learn from our past, see what we have done, how it was done. It is humbling to see where the Kelsey was just 16 years ago, and the limits we had to face. Despite these limitations, however, the staff and curators were able to overcome and do the best we could with the resources we had. Back then, we had no idea a space such as Upjohn would be coming to us, we could only hope.

The files in the exhibition archives contain old posters, flyers, photos, even layout designs. These are a few of the examples we present this month. And it acts as a reminder that even though Oplontis will soon be going away, we still have the beautiful Barosso watercolors to enjoy for many years to come.

From the Archives — May 2016 Read More »

Analyzing Roman wall paintings

BY CAROLINE ROBERTS, Conservator, Kelsey Museum of Archaeology

When I think about color in antiquity, I like to imagine how colors have weathered, or changed chemically over time, and the ways these changes impact how we see ancient paint surfaces. Ancient paint can be found on terracotta figurines, marble sculpture, and — most visibly — on wall paintings. The Kelsey Museum preserves a number of Roman wall painting fragments, and curator and professor Elaine Gazda has incorporated these artifacts into her history of art classes. One of Professor Gazda’s students, U-M senior D’Arcy Cook, has taken on the challenge of identifying the pigments from a group of these wall painting fragments.

D’Arcy is a chemical engineering major who is interested in archaeological chemistry and conservation science. Her primary research question was whether pigments on the Kelsey wall painting fragments matched what she had learned to expect based on published literature. To answer this question, D’Arcy used analytical techniques available in the Kelsey Conservation Laboratory and across campus. I felt this would be a great opportunity to learn more about artifacts in the Kelsey collection and to provide D’Arcy with experience analyzing ancient materials.

Using a scalpel, I removed milligram-sized samples of paint from the fragments. D’Arcy analyzed the samples using Fourier Transform Infrared Spectroscopy (FTIR), an analytical technique that identifies materials by detecting signals produced by their molecular bonds. Among other results, her analysis confirmed that Egyptian blue is present on one of the fragments — a pigment I also detected with a modified camera, and which we both observed using a polarized light microscope. Egyptian blue pigment was commonly used by the Romans on wall paintings and sculpture.

This project illustrates how technical research works best by incorporating multiple, cross-checking analytical techniques, and depends on scientists, art historians, and conservators to happen. Many thanks D’Arcy, to Elaine and the Kelsey curators, and to the U-M Chemistry department and EMAL laboratory for their help with this research!

Image_01 a
Sampling photograph showing plaster and paint layers on a piece of wall plaster.

 

Image_02 a
Visible (VIS), infrared reflected (IRR), infrared reflected false color (IRR-FC), and visible-induced infrared luminescence (VIL) images. The white luminescence in the VIL image shows the presence of Egyptian blue.

Analyzing Roman wall paintings Read More »

Ugly Object of the Month — April 2016

BY SUZANNE DAVIS, Curator for Conservation, Kelsey Museum of Archaeology

The Kelsey Museum’s current special exhibit Leisure and Luxury in the Age of Nero is full of insanely gorgeous objects from the villas of Oplontis near Pompeii. But guess what? The Kelsey has a few objects on view in this exhibit, too, and you probably won’t be surprised to learn that some of them are, you know, not insanely gorgeous.

29617
Polished fragment of architectural facing. KM 29617.

This month’s Ugly Object is a marble sample — basically, a polished rock — and it’s on view in a section of the exhibit that demonstrates how the villas’ surfaces were adorned with decorative stones. You see the object here before conservation treatment to remove the collector’s label. The label — which we saved, of course — says: “From the Great Theater at Ephesus, Sept 6th 1867.”

It was collected and given to the Kelsey by James D. Candler, a businessman, builder, and traveler who was based in Detroit in the late 19th and early 20th centuries.

This stone sample and others like it have been the focus of recent research at the Kelsey. IPCAA alumnae Leah Long and Lynley McAlpine, U-M professor and Kelsey curator Elaine Gazda, and University of Akron emeritus professor Clayton Fant have been studying the Kelsey’s stone samples, in part to see if analytical techniques like stable isotope analysis can connect samples like this one to their sources and buildings of origin.

Ugly Object of the Month — April 2016 Read More »

From the Archives — March 2016

BY SEBASTIÁN ENCINA, Museum Collections Manager, Kelsey Museum of Archaeology

The exhibition Leisure and Luxury in the Age of Nero has now been open at the Kelsey Museum for just over a month, and it continues to bring in large crowds of people who marvel at the luxuriousness of a Roman settlement at the time of the eruption of Vesuvius. That devastation wreaked havoc on a large swath of land across the Italian countryside. Entire towns were demolished, enveloped by the falling ash and pumice. Thousands of lives perished, buildings destroyed, the geography permanently altered. The aftermath left carnage, but it also provided an opportunity to freeze the city of Pompeii and the town of Herculaneum and surrounding areas in a manner that shows the modern viewer what life was like at that particular moment when the world ended for so many.

The site of Pompeii has fascinated the public and scholars for centuries. It is an opportunity to view the ancient world almost directly, without the inevitable change that affects every other society. There is still much to learn about the site, and about ancient Roman life.

In the 1890s, a young Latin scholar by the name of Francis W. Kelsey visited Pompeii, as it was an area of interest for him. There, he met renowned Pompeii authority August Mau, a German scholar who was directed by his doctors to move to a warmer climate for his health. Mau obliged, and moved to Italy. There, Mau and Kelsey formed a strong bond, such that Kelsey was invited to pose with Mau’s “Giro,” his group of students (From the Archives — September 2015).

Through this strong relationship, Kelsey was given the opportunity to translate Mau’s book on Pompeii into English. Kelsey proved to be quite an adept scholar, publishing the translation before Mau could publish the original. Kelsey even managed to insert additional materials into his edition, information not found in the Mau publication.

The Kelsey archives hold evidence of this work, and that is the topic for this month’s “From the Archives.” The holdings of an archives is often thought to be the papers of an institution, letters, manuscripts, photographs. In the world of archives, libraries, and museums (ALM, or LAM), there is increasing overlap in the materials held by each. All three could hold materials normally found in the others. In the Kelsey, we sometimes come across atypical archival items, such as this box full of copper plates. Francis Kelsey’s handwriting is found throughout the box and on notes found within. We know it was he who stored these plates that were used for printing the Pompeii book in the box originally. These plates, made of copper and wood, while some are rubber and wood, contain the images of Pompeii used during the printing process. A faint image of a scene from the site can be seen in the example.

IMG_20160318_164831
Image of Pompeii copper plates and box.

While the original intent of Kelsey was to safeguard the plates, his act has a secondary function. The box itself, perhaps seen as nothing of note at the time, gives us a view of life at the turn of the century (from 19th to 20th). Chiozza & Turchi was a soap making company in Italy (Pontelagoscuro). From this box, we note the decorations used in commercial products. What were denizens of the early 1900s seeing when they went to market? What companies existed then, and what products were they selling?

A quick search for the company returns discussion of other Chiozza e Turchi advertisements, and how people are collecting them. There may be no value to the box itself, but it is interesting to hold an article viewed as commonplace then but so full of intrigue now. And this is how many museum workers and archaeologists feel when working with their collections. A chance to see a glimpse of life thousands of years ago, or even 100 years ago, is exciting. But these objects that were modern in 1900 depicting a time nearly 2000 years earlier, are now themselves historical artifacts. In time, the objects I use every day will meet this same fate, and a future archivist or archaeologist will marvel at something I overlooked every day. And the process will continue.

IMG_20160318_164342
Detail of Pompeii plates’ box.

 

IMG_20160318_164657
Image of Pompeii plates and box.

 

IMG_20160318_164709
Detail of Kelsey’s note from the Pompeii plates’ box.

From the Archives — March 2016 Read More »

RTI at Kurru!

JANELLE BATKIN-HALL, Graduate Intern in Conservation

I’ve just returned from a fantastic six-week fieldwork experience at the El Kurru archaeological site in North Sudan. There, Kelsey conservator Suzanne Davis and I documented ancient figural and geometric graffiti in a funerary temple at the site. Each day, Suzanne and I would make our way through a maze of mudbrick alleys to the edge of the village, where the funerary temple and several royal burial tombs and pyramids are located in the desert.

We photographed  the graffiti using a process called reflectance transformation imaging (RTI) (fig. 1). RTI is an excellent technique for documentation because each pixel records surface texture in addition to color. Since sandstone is subject to ongoing disintegration and loss, the resulting RTI images provide an excellent record of the graffiti’s current condition, as well as a highly detailed image of the column’s surface texture.

Fig-1
Figure 1. Conservators Suzanne Davis (left) and Janelle Batkin-Hall performing RTI imaging at El Kurru. (photo by Walter de Winter)

The Kurru graffiti were documented using highlight image capture where the camera remains fixed and a portable flash is moved at intervals which create a dome of light over the surface.  In a single photo sequence of one object (or in this case, graffito), approximately 48 digital images are taken. Two reflective black spheres are also fixed within the image frame, and the reflection of the flash on these spheres allows the processing software to calculate the light direction for each image. The resulting images are combined with software, resulting in a single file. In this file, the viewer can move the light source across the surface in order to examine the surface details and topography from any angle (fig. 2).  As a result of using this technique, 64 “new” ancient graffiti were positively identified and additional surface details became visible. In a couple of instances, a graffito was initially misidentified. For example, in 2015 a particular graffito was identified as an arrow. After performing RTI, it was clearly a human figure.

Fig-2_RTIViewer_Screen_Capture
Figure 2. Screen capture of bull graffito using CHI’s RTIViewer software.

For me, this was a great experience because I was able to use a technique I recently learned in graduate school. Being able to apply it onsite and share the results with our colleagues was very rewarding.

 

RTI at Kurru! Read More »

lsa logoum logoU-M Privacy StatementAccessibility at U-M