A typical Tuesday in Kaipure

Anna O’Neill, Assistant Project Conservator

The Kaipure lab space in the Lower Egypt (Sphinx) Gallery lets visitors observe as conservators work on a tomb chapel wall, but we don’t often have the opportunity to explain what’s going on. So, here’s a glimpse into what we might be doing on any given day.

9:00 am: We arrive in the conservation hallway, drop off our bags and grab a quick cup of tea to warm up before our weekly department meeting.

9:15 am: Department meeting! It’s getting a bit crowded in here with so many conservators working on lots of different projects. We give our updates – “Still working on Kaipure” – and listen to everyone report their progress. Since we spend most of our time working in the Lower Egyptian Gallery, it’s fun to hear all about all the various objects being treated.

10:00 am: Céline finished up the block she was working on yesterday, so our first order of business is to put her completed block back on the red shelves along the back wall and pull out a new pallet for her to work on.

Jonathan brings Big Joe into the lab.

10:15 am: We’ve completely rearranged the lab, clearing space in the middle and in front of the shelves so that we can bring in Big Joe, our forklift (no, really – his name is written on the side). Most of the time, people tend to think of conservation as a very delicate task, but we’ve had to become experts in heavy machinery, too.

Carefully maneuvering Big Joe to pick up a pallet with a completed block.

10:30 am: We use Big Joe to move Céline’s completed block to a shelf, measuring to make sure that it fits, and then raise the tines all the way up to the top shelf. It’s the first time we’ve had to reach this high, so we’ve brought in Bob Thurlow, Special Projects Manager and resident forklift expert, to supervise while we bring down a new pallet. Fortunately, everything goes smoothly and we land the pallet on a wheeled table made specifically to hold the heavy weight of the blocks.

Left, Céline pulls a block from the top shelf – it’s eight feet off the ground, but feels much higher! Right, Making sure the pallet is centered on the rolling table.

10:45 am: It’s time to play Jenga with our workspace again as we put Big Joe back in storage and get our tables back in working position.

11:00 am: Céline begins documenting her new block, which means getting to know every inch of the object. She begins photography and condition mapping, while Jonathan and I get back to work on the pieces we already had out.

12:30 pm: Lunch time!

1:30 pm: We’re back in the lab, each working on our blocks. Céline has finished documenting her new block, so she gets started on the first phase of cleaning – dusting with a soft brush and gentle vacuum.

Jonathan is busy with solvent cleaning, painstakingly rolling tiny cotton swabs saturated with acetone or ethanol over the surface to remove soiling, staining, and other substances that may have accumulated over the nearly 100 years the wall was on display.

Everybody busy at work in the Kaipure lab.

I’ve done all the cleaning I can on my block and now I’ve moved on to stabilizing loose and lifted flakes of paint and stone. This is done by a process we call “edging”, using a syringe to apply a mixture of Paraloid B72 bulked with glass microballoons and fumed silica to fragile areas, then gently shaping it with a solvent-soaked swab so they fill any gaps between flakes and the stone surface. These tiny fills serve multiple purposes: they fill empty spaces so they won’t collapse under pressure; they protect the edges so the flakes won’t be popped off if touched; and they provide light adhesion between the flake and the stone. Once inpainted, the B72/microballoon mixture blends right into the stone, but we feel much better knowing that the surface is more stable.

5:00 pm: The guards are making their rounds in the gallery to make sure all the visitors have left for the day. That means it’s time for us to close up the Kaipure lab for the evening and head home.

All photos by Lucia Scanlan

The Kaipure Conservation Project is funded through a generous grant from the American Research Center in Egypt (ARCE) Antiquities Endowment Fund (AEF) which was established though a grant from the United States Agency for International Development (USAID).

Animal mummies: contents revealed part II

This is a follow-up to my last blogpost, where I posted some side-by-side images of animal mummies and their x-rays. In this post I’m going to explain what we think we’re seeing in the radiographs.

Let’s start with one of the easiest ones:

50-17-1: mummy paired with radiograph

50-17-1: mummy paired with radiograph

This one is really easy. While the mummy is made to look like a cat, we can clearly see that there are no cat remains, or any remains, inside. All we see inside are very small straight pins, which were pushed into the linen wrappings in 1980 to keep them from unraveling. We know this happened in 1980 because it is noted in an old conservation report. A good example of an ancient “fake”!

The next one is also fairly easy to interpret.

ibismummygif

E12438: mummy from the side, paired with radiograph

We thought this was an ibis mummy, and sure enough, we see an entire ibis inside the wrappings. The GIF above highlights the distinctive skull and beak of the ibis in red.

You could say that the next one, which appears to be a crocodile mummy, has a couple extra special surprises inside:

crocgif

E17631: mummy from above, paired with radiograph

There are 3 baby crocodiles under the wrappings! The GIF above highlights the 3 skulls in red.

Next we have what appears to be a falcon mummy, but what we see inside is harder to interpret:

falcongif

E12441: mummy paired with radiograph

Upon close inspection, we can see 2 separate, and very small birds inside. In the GIF above, the red outlines the skulls and beaks and the blue outlines the bodies. We don’t think that these birds are falcons, or even birds of prey at all. They look much more like doves or pigeons (based on examination of comparative specimens with zooarchaeologist Dr. Kate Moore). It’s possible that this mummy was never meant to represent a falcon at all – the jury is still out on this one.

Lastly, we have the tiniest mummy of the bunch:

shrewgif

E12435: mummy from the side, paired with radiograph

There is an animal inside, and it looks like its body is upside-down. It is very difficult to make out, but we can see its front teeth and its long tail. This one definitely called for the expertise of Dr. Moore, who brought up some comparative specimens from her collection. Ultimately, it was the teeth that convinced her that what we see inside this little mummy is a shrew.

Dr. Moore holding a tiny shrew skull

Dr. Moore holding a tiny shrew skull

To the ancient Egyptians, the shrew represented the nocturnal side of Horus. Here is a link to an image of a similar shrew mummy in the collection at the Brooklyn Museum.

Our fun with animal mummies never ends! For more information about where these mummies came from, check our their catalog records in our Collections Database:

50-17-1: Cat mummy

E17631: Crocodile mummy

E12441: Falcon mummy

E12438: Ibis mummy

E12435: Shrew mummy

Out with the old, in with the…old

Update – this post contains blurred images of human remains and outdated language. We no longer use the term “mummy” and instead use “mummified human individuals” to refer to Ancient Egyptian people whose bodies were preserved for the afterlife. To read more about these changes, follow this link.

Since we opened in September 2012, visitors to the Artifact Lab have become accustomed to this view:

View into the Artifact Lab, with boards from Ahanakht’s coffin pointed out with red arrows

The shelves lining the back wall of the lab have been mostly occupied with large cedar boards from the Middle Kingdom outer coffin of Ahanakht. We’ve written about this coffin before here, here, and here, and we’ve spent a lot of time in the lab examining, conserving, and studying the boards, alongside the Curator-in-charge of the Egyptian Section Dr. David Silverman and his graduate student Leah Humphrey.

Conservator Alexis North and Dr. Silverman reviewing details captured through reflectance transformation imaging (RTI)

Conservator Alexis North and Dr. Silverman reviewing details of the boards captured through reflectance transformation imaging (RTI)

Last week, the scenery in here changed quite a bit, as the boards were carefully packed:

Kevin Cahail secures one of the coffin boards to its custom-made palette in preparation for moving off-site

Curatorial Assistant Dr. Kevin Cahail secures one of the coffin boards to its custom-made palette in preparation for moving off-site

Large boards from Ahanakht's coffin packed and ready to be moved off-site

Large boards from Ahanakht’s coffin packed and ready to be moved off-site

Since the boards have been documented and conserved, they are moving off-site temporarily to make room for “new” things to come into the lab. These “new” pieces are actually being deinstalled from our Secrets and Science and Mummy Galleries, in order to retrofit those galleries to ensure that they will be secure during the construction project happening next door at the Hospital of the University of Pennsylvania (HUP).

Views into the Secrets and Science gallery, before deinstallation began

Views into the Mummy Gallery, before deinstallation

Views into the Mummy Gallery, before deinstallation

Some of these objects and mummies will go back on display shortly, but need to be examined and conserved first, so they will be worked on in the Artifact Lab in the next few weeks to allow for reinstallation.

Details about the construction project at HUP and how it is affecting our museum have been described in some recent news articles, which you can find by following links that I’ve included at the end of this post.

For a couple days, the shelves in the lab were empty:

Conservator Alexis North working in the Artifact Lab with emptied shelves in the background

Conservator Alexis North working in the Artifact Lab with emptied shelves in the background

but we didn’t waste any time filling them back up again:

Shelves in the Artifact Lab filling up with new things

Shelves in the Artifact Lab filling up with new things

Note, this photo above was taken after day 1 of deinstallation; there will be more coming into the lab in the upcoming days.

We’ll post more about some of these “new” artifacts and mummies as we work on them in the next few weeks.

Demolition next door puts Penn Museum on shaky ground

Delicate process of preserving artifacts as things get shaky at UPenn Museum

Moving Marble: Penn Museum prepares for Penn Tower demolition

 

Examination of Wooden Tomb Models

Hi everyone! This is Alexis North, and I’m the project conservator at the Penn Museum working on the Egyptian storage move project, which has been referenced here on the blog a few times. I wanted to give a brief introduction on one of the projects I have been working on most recently in the Artifact Lab.

We recently received several new objects in the Artifact Lab. They are a collection of painted wooden models, depicting various aspects of daily life, which date to the First Intermediate Period and Middle Kingdom (2130-1784 BCE). Many of the models we have were excavated by Sir Flinders Petrie and the British School of Archaeology, through excavations the University of Pennsylvania supported.

Photo of tomb models on display, prior to deinstallation.

Photo of tomb models on display, prior to deinstallation.

These models had been on display in our Egyptian Daily Life gallery for quite a long time. However, due to the vibrations caused by the construction going on right outside the museum, the entire case had to be deinstalled and the objects moved for their protection. The models have very fragile painted surfaces, and are made of multiple pieces which could separate, fall over, and be damaged if exposed to vibrations within the case. They also in most cases have not be examined by a conservator since their acquisition.

Therefore they were all brought into the Artifact Lab for documentation and treatment. We started by photographing all the individual pieces, and assessing the condition of the painted surfaces. Many of the models have actively lifting and flaking paint, and the horizontal surfaces are also quite dirty.

The model most in need of treatment is this boat:

Detail of E14260.1, boat model, before deinstallation.

Detail of E14260.1, boat model, before deinstallation.

Boats have a lot of significance in ancient Egyptian culture and religion. They were the primary means of long-distance travel along the Nile, and the Egyptians believed that the gods traveled across the sky and through the underworld on boats. Boats were also used for fishing. This model depicts a transport boat, with oarsmen, a mast and rudder, and a canopy painted in a cowskin pattern where the tomb owner would have been represented sitting and enjoying his travels.

This model has some of the most serious flaking paint and discoloration, especially on the top and sides of the boat:

Detail of lost and lifting paint on top of boat, and grimy surface.

Detail of lost and lifting paint on top of boat, and grimy surface.

I began treating this model by taking detailed photos of the surface, then using those images to map different condition issues. Then I chose different treatment materials and techniques which work best for those issues.

Come back for the next post to see more about what we learned from examining this model, and how I chose to treat it. See you soon!

 

References:

Fleming, S. (1980). The Egyptian mummy: Secrets and science. University of Pennsylvania.

Taylor, John H. (2001). Death and the Afterlife in Ancient Egypt. The University of Chicago Press.

 

Alexis North is the Project Conservator for the Egyptian Storage Move Project, Penn Museum.

 

Vampire mummy?!?

In the last couple days we found out a bit more about one of the animal mummies we recently x-rayed.

The clue is related to one of the cat mummies, which came into the lab looking like this:

CG2015-4-9 in (not original) coffin

CG2015-4-9: cat mummy in (not original) coffin

First of all, you might be asking yourselves, how did we keep this amazing detail from you before? This mummy was previously stored in an creepy/wonderful vampire coffin with a glass cover (not original to the mummy). It was sealed inside the coffin, presumably to make it more attractive (?) for collection/sale. In order to get a better look at the mummy and carry out treatment, conservator Alexis North had to remove it from the coffin. Once it was out , we could see that the head had been intentionally cut off.

CG2015-4-9, view from top showing where head was cut off and exposing bones inside

CG2015-4-9, view from top showing where head was cut off and exposing bones inside

Inside the coffin, Alexis found some bits of bones, including this:

Portion of a maxilla (upper jaw), including teeth, 10X magnification.

Portion of a maxilla (upper jaw), including teeth, 10X magnification

This is a portion of the maxilla (upper jaw) of a cat with some linen and even some fur still attached! Based on it’s size and the fact that the incisor is not fully erupted, we* estimate that this belonged to a kitten that was only a few weeks old when it died. The size of the bones corresponds well with the size of the kitten’s body we saw in the x-radiograph. Here’s that image again, showing how small the kitten is in relation to the size of the mummy:

The radiograph shows that there is only a tiny kitten under the wrappings of this cat mummy.

Left: Cat mummy. Right: Radiograph of the cat mummy, which shows that there is only a tiny kitten under the wrappings.

There are other bits of the skull that we found inside the coffin too. We’re not sure when the head was removed, but afraid that the head may have been cut off to fit the mummy into the vampire coffin. We’ve made a new box for the mummy, one that is both more appropriate for this object and for the museum environment, and that will certainly be more protective.

Cat mummy in a new storage enclosure

Cat mummy in a new storage enclosure

*Special thanks to Dr. Kate Moore for her expertise and time!

What’s inside those animal mummies?

Last week we x-rayed 8 animal mummies from our collection. These mummies were previously in storage and are in the Artifact Lab for much needed treatment and storage upgrades. As you can see in the images below, some of them are incredibly fragile with extensive damage. X-radiography is completely non-invasive and is one of the best tools we can use to study these mummies.

Recently we heard that researchers at the Manchester Museum and the University of Manchester found that about 1/3 of their mummies are “fakes” (and we use this word rather loosely – read the article in the link to find out more).

How do ours measure up? Well, even though we have a much smaller sample size, we found our stats to be a little bit better – 7 of the 8 that we just x-rayed contain animal remains, and one contains the remains of 3 animals, so the number of animals actually outnumbers the number of mummies in this instance!

Below we’ve posted paired images of the animal mummies and their radiographs. Our initial findings are written in the captions for each image. See if you can figure each one out, and if you see something that doesn’t make sense or something that we haven’t explained, please write into the comments below this post and we’ll follow up! All radiographs were captured with a GE Inspection and Sensing Eresco 65MF4 tube on a digital x-ray detector at 35kV 6mA for 6 seconds.

Cat mummy (left) and x-ray image (right) showing a complete cat body inside.

L-55-13: Mummy (left) and radiograph (right) showing a complete cat body inside.

ibismummy4

97-121-27: Mummy (left) and radiograph (right) showing an ibis in the lower 2/3 of the wrappings.

Mummy (left) and radiograph (right) showing a fragmented ibis body inside.

97-121-28: Mummy (left) and radiograph (right) showing fragmented ibis remains inside.

Mummy (left) and radiograph (right) showing an ibis inside.

E3539: Mummy (left) and radiograph (right) showing an ibis inside.

Mummy (left) and radiograph (right) showing an ibis inside, plus an extra bone and part of the ibis beak.

E3541: Mummy (left) and radiograph (right) showing an ibis inside, plus an extra bone and part of the ibis beak lying outside the mummy bundle.

Mummy (left) and radiograph (right) showing nothing inside the wrappings.

CG2015-4-1080: Mummy (left) and radiograph (right) showing nothing inside the wrappings (it was likely intended to be a hawk or falcon mummy).

kittenmummy

CG2015-4-9: Mummy (left) and radiograph (right) showing a young kitten in the upper half of the wrappings, missing its head.

snakemummies

97-121-8: Mummy (left) and radiograph (right) showing at least 3 snakes inside (scale not included, but this mummy is about the length and width of an iphone).

Animal mummy x-rays

The Artifact Lab has been a busy place lately (thanks in part to a big collections move project), and just last week we got a special delivery of some animal mummies from storage which have not been examined in a long time, and have never been x-rayed.

A cart with animal mummies, some which are still wrapped in tissue paper.

A cart with animal mummies, some which are still wrapped in tissue paper.

While everything has to move out of Egyptian storage, these animal mummies will not be moving offsite – we are finding a temporary home for them elsewhere in the museum. Nonetheless, this move is a chance to examine everything, to upgrade storage mounts, and to carry out minimal conservation treatment as needed.

Project conservator Alexis North photographs an ibis mummy in the Artifact Lab.

Project conservator Alexis North photographs an ibis mummy in the Artifact Lab.

A view of an ibis mummy during treatment to stabilize loose linen wrappings (the silver "kisses" are small weights)

A view of an ibis mummy during treatment to stabilize loose linen wrappings (the silver “kisses” are small weights)

So while we have these mummies in the lab, we thought we’d also take the opportunity to x-ray them using our new(ish) digital x-radiography equipment. There have been stories in the news recently about what x-rays and CT-scans have revealed about animal mummies in other collections and we’re interested in knowing how ours compare.

Alexis arranges an animal mummy on the x-ray digital capture plate below the x-ray tube.

Alexis arranges an animal mummy on the x-ray digital capture plate below the x-ray tube.

We will follow this post with some images of each of the mummies and what the radiographs revealed. Sorry to leave you hanging but I promise it will be worth the wait! Also stay tuned to the museum’s Facebook and Instagram accounts for another mystery mummy quiz!

We love ugly objects too!

Last week, I posted some photos of a beautiful stola coffin lid that I’m working on at the moment, and I mentioned that this lid might be my new favorite object. I now somehow feel a need to post images of some objects that aren’t necessarily as pretty, but I want to assure you that we’ll give them just as much lovin’ here in the conservation lab.

A Nubian jar, ca. 100 BCE-300 CE and ivory horn protectors from Kerma (Sudan), ca. 1650-1550 BC

A Nubian jar, ca. 100 BCE-300 CE and ivory horn protectors, Kerma (Sudan), ca. 1650-1550 BCE

A cat mummy head, unwrapped, Thebes, ca. 664-332 BCE

Cat mummy head, unwrapped, Thebes,                 ca. 664-332 BCE

Sections of a beaded mummy shroud covered in wax

Sections of a beaded mummy shroud covered in wax, Egypt, exact site and date unknown

I also feel the need to mention that I don’t just love pretty objects. My most favorite “object” that I’ve worked on here in this lab in not an object at all, but a mummy – our Predynastic mummy Bruce, and I don’t think anyone would call him pretty. But please don’t take that the wrong way (I don’t think he would be offended either). My interest in him goes way beyond his looks.

I promise to post photos of what the objects in the images above look like before they leave the conservation lab. Conservator Alexis North will be working on these pieces (along with some help from our interns) in the upcoming weeks.

This post was inspired in part by a great blogpost on the Kelsey Museum of Archaeology’s blog, “Ugly Object of the Month“. Enjoy!

 

Wax on, wax off

In my last post, I briefly described the Egyptian storage move project currently underway. And I also promised to feature some of the objects that are in the lab as a part of this project. As conservators, we get excited by lots of things, so I really can’t post images of every single object that comes into the lab, but we will try to post as much as we can here, on Twitter, and on the museum’s Facebook page.

Earlier this week, Alexis brought a drawer of beadwork up to the lab, and this is one of the pieces she found in that drawer:

A piece of beaded fringe that recently came to the Artifact Lab for conservation/re-housing.

A piece of beaded fringe that recently came to the Artifact Lab for conservation/re-housing.

Huh. Not the prettiest object I’ve ever seen. But just wait…

Partially cleaned beadwork

Partially cleaned beadwork

Under that dark material (which is wax) the beadwork is beautiful! We actually see a lot of beadwork in our collection that has been coated with wax, which has now discolored to a dark brown, completely obscuring the colors of the beads. Coating beads with wax was a method used by archaeologists to remove beadwork from mummies during excavation, in order to maintain the correct arrangement of the beads, since the original linen threads were usually mostly deteriorated. In the case of this beadwork, shown above, it was not only waxed, but affixed to a piece of cardboard. Alexis is currently cleaning the wax off the beads and she will eventually re-house this piece for safe transport to the off-site storage location.

Another cool detail – she found this, written on the back of the cardboard:

HapimenbeadsIt says: “E16220B. Bead fringe of Hapi-men, Pl. LXXIX Abydos. From mummy buried with his dog.” This small piece of beadwork belongs to our mummy Hapi-Men, who is currently on exhibit with his dog! Hapi-Men and Hapi-puppy were excavated by Sir Flinders Petrie from Abydos in 1902. You can read more about Hapi-Men and some of our research about him here and here.

 

Treasures from Egyptian storage

If you have visited the Artifact Lab in the last couple weeks, you may have noticed that we have a few more objects out than usual, and often, an additional conservator working in here.

A few objects that were brought to the Artifact Lab recently for conservation treatment before they are moved off-site.

A few objects (stone, cartonnage, ceramics) that were brought to the Artifact Lab recently for conservation treatment before they are moved off-site.

The new objects were recently brought up from Egyptian storage by conservator Alexis North, who was previously here as a graduate intern, and now is working as the new Project Conservator for the inventory and move of our Egyptian collections to an off-site facility.

Due to construction that will be happening at the Hospital of the University of Pennsylvania (HUP), which is adjacent to the museum, certain storerooms and galleries will be affected and as a result, the entire Egyptian collection in storage (with some exceptions) must be moved off-site for the duration of the project. This move requires a new inventory of the collection and also that everything be examined and stabilized, through conservation treatment and/or packing solutions, which will benefit the collection greatly. In addition, emptying the Egyptian storerooms will allow us to carry out a much-needed renovation of these areas, so that when the collections return, they will be housed in a much better protective environment.

We will try to feature some of the more interesting objects that come up to the lab as a part of this project on the blog, but if you do have a chance to stop by the Artifact lab this summer, you’ll be in for a treat, I assure you, because we will be working on some pretty amazing things.

This faience beaded collar is just one of the beautiful beaded objects that came into the lab recently as part of the move project.

This faience beaded collar is just one of the beautiful beaded objects that came into the lab recently as part of the move project.