Showing posts with label museum conservation. Show all posts
Showing posts with label museum conservation. Show all posts

Wednesday, 5 September 2012

A Charming Send-off

All good things come to an end. Last week the Small Blessings project came to its official close and we saw the departure of both amulets and people from the staff areas of the Museum.

Over the past seven months, more than 3000 objects have been physically numbered, catalogued and photographed. What an achievement! But de Mortillet was no slouch when it came to collecting and there remains a large number of religious 'medals' or tokens that will be processed in due course.

Just a few of de Mortillet's many medals or tokens


Meanwhile, the catalogued amulets have been repackaged and boxed up, ready to return to the stores.

Boxes of amulets in transit to our storage facility 


Originally they were in huge, old-fashioned trunks but with much more economic and organised packing, they are now contained within slimmer archival boxes which take up much less valuable space on our very crowded shelves!

Finding a new home for the amulets


Each amulet has been given a location (a box and shelf number) so will be easy to find should we need to retrieve it for display purposes or a visiting researcher.

We also had to say goodbye to our three contract project staff - Charlotte, Alice and Rosanna. It was a bit of a sad day, despite the copious tea and cake, as they had all become part of the Museum and we will miss them. We wish them well with their future endeavours and hope that they've enjoyed their experience at Pitt Rivers. One thing's for sure - having worked with amulets from around the world to protect against every conceivable disease, misfortune and evil spirit, or designed to bring prosperity, health, fertility and good fortune, there was little need for us to wish them 'good luck'...

A lucky cuppa © The Moon's Hobby Store and More

Helen

Friday, 3 August 2012

Caring for Fragile Fabrics

These are three ribbon amulets from Bolivia, which were sent to Conservation for treatment. 

Flaking decoration (PRM 1985.52.1726)

As you can see, the gold decoration over the text was flaking off, so I had to consolidate it. This means fixing it more securely to the surface using an adhesive. I did this under the microscope, so that I could watch very carefully if any colours on the ribbon started running.

Stuck together (PRM 1985.52.1729)

Two of the ribbons were folded over on themselves and had become stuck where they'd been painted. I had to decide whether to attempt to open them up or leave them as they were.

I tried releasing them very gently using a scalpel and managed to unfold the crimson one, but the white one was much too firmly stuck and the action would have caused quite a lot of damage to it, had I continued trying. As we already had two from the same area with the same decoration, it seemed unnecessary.

PRM 1985.52.1727

They all have a small amount of ‘shattering’ which is when the fabric becomes brittle and falls apart. This is mainly at the centre of each ribbon around the painted text and image. To stop the fabric breaking apart, I gave it a backing of silk crepeline, which was dyed to the same colour as each ribbon. This was then placed over each break like a plaster.



Once treatment was completed each ribbon will need to be stored properly. It’s best if it doesn’t get folded, as over time folds become breaks, so I wrapped each ribbon around some conservation grade foam and interleaved it with some acid free tissue to prevent any more sticking problems in the future. I then made a couple of small boxes out of conservation grade corrugated plastic to stop them getting crushed.

Jenny

Thursday, 14 June 2012

A Bit of Support


Sometimes the best thing we can do to help an amulet is simply to give it some better packaging or more support.

All the materials we use for packaging are inert and stable. This means that the packaging materials themselves aren’t going to deteriorate or give off harmful gases and they don't have any chemical residues. Any gases etc., which a packing material might give off, could increase the deterioration of the artefacts they are trying to protect.


The plastic boxes we use for storage are made of Polypropylene or Polystyrene, which are very stable plastics. Both are easily available on the high street. We tend to use materials such as Plastazote, Jiffy foam (both Polyethylene foams) and acid free tissue to cushion around objects. Correx board (corrugated Polypropylene sheeting) or acid free mount board is used to support them.


In the image below, amulet 1985.52.10 (a bronze ram’s head pendant from Russia) has been cushioned using black and Plastazote and then placed in a crystal (Polystyrene) box.


Ram's head pendant (PRM: 1985.52.10)


Amulet numbers 1985.52.504 and 1985.52.505 (both textile scapulars from Italy) needed more support, so they were placed on a Jiffy foam lined piece of Correx board with a window cut in it and then another Correx board on top.


Jenny

Wednesday, 6 June 2012

Fragile Bodies: ex-voto artefacts and art

We've come across plenty of votive offerings and charms relating to body parts. Here, we concentrate on a female body part in particular, starting with this account from Andrew, a PRM conservator, whose recent work on a broken object highlights the decisions made about preservation when it comes to object care... 

"A wax breast ex-voto, recently catalogued in the Small Blessings project, came to the conservation lab. It was in nine separate pieces and the cataloguers had assigned each piece a unique number (1985.52.1198.1-.9). My goal as a conservator is to find the best way to protect an object. In this case, the object is made from wax which, after 100 years, becomes quite a fragile and difficult material. The wax is probably beeswax, so if it gets too warm it will become easily distorted; too cold and it will easily break if dropped. 

Wax ex-voto breast in fragments (PRM: 1985.52.1198.1-9)

The damage to the object probably occurred when it was dropped or packaged badly some time in the past, and not as a result of its use. All the separate pieces had been kept and when pieced together, there were only extremely small fragments missing. I had a choice to make. If I did not reassemble it and kept it as a separate fragments, there is the danger that with handling and transport, the edges of the wax would get damaged, squashed, and abraded.  Also, as separate fragments, it is difficult to ascertain what the object actually is without having to reassemble and hold some of the pieces together which would cause more damage - especially if repeated over time. So I decided it would be better for the object if it was reassembled and packaged more suitably.

The reassembled wax breast (PRM: 1985.52.1198)

I adhered the pieces together with a conservation grade adhesive, which has good aging properties meaning it won't discolour, crack, or become brittle for a long time, and can be removed easily if necessary. Now the object can be easily identified and handling is much easier and safer. We have now dropped the (1-9) sub-parts of the accession number so it is referenced as just one object. If, at some point in the future, there is a need to disassemble it back into its parts, then the special adhesive I've used means this can happen without causing any harm to the object."

We have found a lot of ex-votos in the de Mortillet collection and some of these will be added to the online gallery when it is published this summer. Ex-votos (from the Latin phrase ex-voto suscepto, meaning ‘from the vow made’) were – and still are – used to solicit divine intervention or give thanks for granted wishes, prayers and intentions. They are placed as visible symbols of devotion and gratitude in churches and chapels following recovery from illness or injury and often take on the form of the diseased / affected body part, e.g. arm, leg, eyes, etc. The object shown above was one of a series of wax ex-votos from the Notre-Dame de Hal church in Belgium. It was probably made in relation to an affliction such as breast cancer although we do not know the particulars about the sufferer or what happened to her. 

The Peres-Maldonado ex-voto painting (unknown artist), oil on canvas, 1777

A similar scenario is depicted in this late 18th-century Mexican votive painting, now cared for by Wellesley College near Boston but once owned by the French Surrealist painter André Breton. It shows an aristocratic woman, Doña Josefa Peres-Maldonado, undergoing rudimentary breast cancer surgery. She's attended by a monk, a surgeon, his assistant and her household retinue. Her calm expression may indicate how her faith and piety are helping her overcome the pain. The painting follows the usual format for these devotional artworks: usually done on on canvas or tin, the scene is horizontal with central images illustrating the petitioner and the nature of his or her illness or ailment (as here, often in graphic detail); an image of a saint or holy figure near the top (here, atop a private altar); and a written description and testimony below. Written in Spanish, it tells of the woman's gratitude for the successful removal of six cancerous tumours from her breast. However, below this in smaller text was added the following sometime later: "Although the wound closed perfectly on 26th July 1777, other accidents befell her from which she died on Friday, 5th September at 3pm." 

The tradition of Mexican ex-voto paintings, introduced by Spanish settlers in the 16th century, continues today and many are to be found in Mexican churches. The subject matter remains largely connected to issues of health and well-being, but the context is often more modern and personalised - for example, requesting miraculous intervention in cases of alcoholism, bankruptcy, natural disasters or car accidents.

Helen

Friday, 20 April 2012

Green Russian

This leather purse is from Kazan in Russia. It contains two nuts and according to our records, once also held two old Russian coins. It was carried to ensure that the bearer always had money. 

Before treatment (PRM: 1985.52.968)

Detail of corrosion (PRM: 1985.52.968)
The purse was passed to me for conservation treatment due to there being green-blue evidence of copper corrosion around the eyelets.

We always assess an artefact throughly before carrying out any treatment, as a sweep of our brush could mean life or death for a little piece of history.


On first inspection it looked a little like there had been copper wire stitching around the eyelets and that this had corroded. If this was the case, I would need to record it carefully before continuing treatment, so I took a look at it under the microscope. I took the photo by attaching a Canon EOS 60D camera to a microscope set at x40 magnification. The image was then sharpened using Helicon Focus Software.

After treatment (PRM: 1985.52.968)

This revealed that it was just products of copper corrosion growing away from the eyelets, giving the illusion of stitching. As a result I could simply brush away the corrosion and vacuum up the debris with our Museum vacuum. 

Jenny

Friday, 23 March 2012

Notes from Conservation



Some amulets bagged up ready for
freezing due to pest damage
Now that the Small Blessings project is well under way, amulets requiring conservation treatment have started to make their way in to the conservation lab.

The large majority of the objects being sent my way for treatment are corroding metals and textile / organic objects, which have been nibbled by pests.

Objects with pest damage are gently cleaned using a museum vacuum, which has a very low suction. They are then placed in our freezer for several days at -30 degrees in order to kill off any remaining bugs, larvae or eggs.




One of the slightly more complex objects needing attention is a small satchel containing religious pictures that was carried by a policeman in Germany (PRM 1985.52.70 - see below). It is a composite object, with silk, copper alloy, paper, and other textile components, each of which is deteriorating or damaged in its own way.


Front of policeman's satchel with detail of corroded metal (PRM: 1985.52.70)

One problem area is on the front, where there is a heavily corroded copper alloy border placed right on top of the red silk. Any treatment carried out on the metal has to be done with great care not to damage or stain the silk further.

The next issue is pest damage, which is particularly noticeable on the back of the satchel. Here the pests have eaten away a lot of the textile around the stitching.

Back of satchel showing pest damage

As with all objects arriving in the lab, the satchel has been photographed and given a thorough assessment. The next stage will be to come up with a plan of action for its treatment.


Jenny

Thursday, 8 March 2012

De-installation of 'Charmed Life' exhibition at Wellcome Trust

A guest blog by PRM Curatorial Assistant, Maddie Ding:


© Wellcome Images

At the end of February I went to London with Andrew, a PRM Conservator, to de-install an exhibition of amulets at the Wellcome Trust. Curated by the artist Felicity Powell, Charmed Life was inspired by the collection of Edward Lovett’s amulets held by the PRM. I was involved with the original installation last autumn; now our job was to remove, check and pack the 381 objects lent by our Museum.

Maddie and Felicity Powell arranging amulets for display during
the installation of Charmed Life in 2011. © Wellcome Images

We worked from Monday to Wednesday. The first case lid was removed by the Wellcome Technicians team shortly after our arrival and objects were carried to the work table where they were condition checked by either Andrew or myself and countersigned by the Wellcome Trust conservator before being packed. The objects were removed from display in reverse order to how they'd been installed (i.e. the last one in was the first one out). Objects were placed in plastic bags and padded with foam. The bagged objects were packed in the appropriate plastic box. The wooden crate held nine plastic boxes each with a contents list.

Andrew and Luana (Wellcome conservator) checking objects under lamplight

Before the objects left the Pitt Rivers Museum for loan, they were assessed by another of our Conservation team, Jenny (who is now working on the Small Blessings project). She described and photographed each object so our role was to compare the object with the original condition report to check that no changes had occurred. Happily there no problems as the condition of all the objects matched the initial assessment. Each time we had a break, the objects we had de-installed were stored in the packing crate and the lid secured. The remaining objects were secured in the display case and the gallery locked.

© Wellcome Images
By Wednesday all the objects were packed safely into their crate. The time it takes to install or de-install an exhibition depends on the number, complexity, size or significance of the objects and working practices of the host museum. This de-installation was calculated to take about three days but if we needed more time the return transport could be delayed. The courier company provided a lorry with drivers to transport the objects back to Oxford, and Andrew and I personally accompanied the crate back to the Pitt Rivers Museum. Most of the objects will be re-packed for storage but a few will return to display.


Maddie

P.S. Even though the exhibition has now finished, you can see a selection of the Pitt Rivers Museum's Lovett amulets that were on display here.