Archive | Conservation RSS feed for this section

On the Polychromy of Ancient Palmyra and on Nomads and Networks in Ancient Kazakhstan in Washington DC

Many greetings from the Smithsonian!

With Syria and its UNESCO world heritage sites in the news these weeks, it is time to look at one of those sites described as one of the surviving wonders of antiquity: Palmyra. Also, we are in the preparation of an exciting exhibition with a wide array of objects from yet another fascinating part of the world, ancient Kazakhstan, that will open soon to the Sackler Gallery here in the Smithsonian in Washington, DC.

We are  in the first week of July 2012. First thing Monday morning, was catching up on the latest news from Kazakhstan for our upcoming exhibition highlight Nomads and Networks: The Ancient Art and Culture of Kazakhstan. One of our colleagues, Claudia Chang, in Kazakhstan had reported earlier this week on this blog and we will continue to run a parallel blog on our exhibition and ancient Kazakhstan on our website starting soon before the exhibition opening in August here in Washington, DC.

Also this Monday, before a meeting with our colleagues from the embassy of Kazakhstan, I presented some current research on pigments and paints on ancient near eastern stone monuments to a wider public in the Smithsonian Institution’s Smithsonian Congress of Scholars Research Tent on the Mall. Despite some heat waves, a good number of visitors came to some twenty presentations from units in the institution, and asked also many questions about the role of pigments on stone monuments in the Ancient Near East. By studying materials that still contain much of the pigments, we can learn more about the aesthetics of the ancient world. Palmyra, “the Place of Palms” as it was known to the Romans, in modern Syria, flourished as a colourful caravan oasis on the trade route linking the Mediterranean with West and Central Asia. Most of the monuments visible on the site today date from the first three centuries CE, including the large colonnade streets and the extensive cemeteries around the city.

In 1908, while on a trip to Aleppo, the rich Detroit business-men Charles Lang Freer (1854-1919), see himself above, acquired a lime stone relief from the site from the dealer Joseph Marcopoli (F1908.236). Originally, reliefs like this one would have marked the tombs of wealthy Palmyrene citizens, either in tower-tombs or complex hypogea below ground. According to an Aramaic inscription, it is the portrait of Haliphat, daughter of Oglata, son of Harimai. This stele is dated 543 of the Seleucid era, which corresponds to the year 231 in the Christian calendar. The stone relief is one of many from Palmyra still preserving traces of the original polychromy. Some of these can be even seen with the naked eye, like the jewellery on the left hand or in details of her necklace.

Microscope images would make painted details much more visible and a red colorant on the statue has recently been identified by scientific analysis. Qualitative elemental analysis of a small sample taken shows the presence of Al, Si, Ca and Fe with a strong presence of iron.

The Freer|Sackler – Smithsonian’s Museums of Asian Art also houses also a collection of archival materials related to the modern exploration of Palmyra, among them a plan of the ruins, donated by Ernst Herzfeld (1879-1948). The plan was made shortly before Freer acquired the stone relief from Palmyra, with the ancient cemeteries indicated around the citywall, together with a series of glass negatives related to an expedition to Palmyra, carried out by Herzfeld’s colleague Moritz Sobernheim (1872-1933) in 1899. Sobernheim had photographed and made squeezes of some of the inscriptions, which later became part of Herzfeld’s collection and are available for research, documenting the very early stages of archaeological fieldwork in the ancient Near East.

 

 

Comments { 0 }

From Bricks to the Baptist: A Day of Archaeology in Peterborough.

The Day of Archaeology seems to have unintentionally have been a day spent in ecclesiastical settings for me. It started with a visit to St Michaels and All Angels Church in Sutton near Peterborough for the Cambridgeshire Conservation Officer Forum meeting. This gathering happens every three months or so and allows Conservation Officers across the region to share best practice. It is hosted by a different authority each time, and this time it was our turn! Sutton Church was chosen as it has recently had works to create a new meeting space and kitchen within the 12th century fabric.

Douglas from SPAB giving his presentation in the evening. Photo by Toby Wood

Built as a chapel of ease to Castor St Kyneburgha (a stunning church as well), it has lovely Norman period carvings and some great gargoyles! Each meeting has a specialist building conservation presenter and for this meeting we had Peter Minter of Cambridge Brick and Tile Company (and Bulmer Brick & Tile), who brought some samples with him to show issues affecting tiles (make sure you ventilate your roofs, was the overarching message). Following this we visited Sacrewell Farm and Country Centre, just a mile up the road, to see their Grade II* listed Watermill, recently the recipient of a first round pass from the Heritage Lottery Fund.

In the evening I was back to a church, this time St John the Baptist in Peterborough City Centre, for the celebration event for Peterborough Buildings in Need, a project I have been running for the last nine months. Funded by the Heritage Lottery Fund this project has had a series of masterclasses and lectures on the theme of valuing the historic environment, alongside volunteer surveys of Peterborough City Centre Conservation Area. The website and end of project report and toolkit are here. The evening had some great talks, including from Douglas Kent from the Society for the Protection of Ancient Buildings or SPAB (in the photo above), and some performance poets reading their poetry about the city (including a poem just for the project, on the front page of the website, and well worth a read!).

Alice Kershaw, Heritage Regeneration Officer

Opportunity Peterborough and Peterborough City Council

 

Comments { 0 }

CSI: Sittingbourne Volunteers & Their Tools

Adapting ‘pin vices’:

Janine and I discussed her progress on investigative conservation of one of the Grave 111 shield studs She has brought in thorns from her garden to use for careful cleaning of the soil and corrosion around the shaft of the stud – this area has mineral preserved wood, reflecting the shield board itself. We got the idea of using thorns after watching conservation work on the Staffordshire Hoard.  Janine feels more comfortable with the softness of her thorn pin vice.

Janice was working in the afternoon on a spearhead from Grave 111, she prefers to use a very fine needle pin tool, that she made herself and brings with her for her sessions, when she is working on an object with fragile or intricate details (eg. mineral preserved textiles).

 

A volunteer’s tool and X-ray of spearhead from Grave 111

CSI conservation volunteer Janine working on a shield stud from Grave 111

 

 

Comments { 0 }

A Day at the Shopping Mall CSI lab (Conservation Science Investigations)

A bit of an introduction and general update:

I am the conservation manager at “Anglo-Saxon CSI:Sittingbourne” [www.anglosaxoncsi.wordpress.com / facebook / @CSIsitt], we reported from the lab last year and are very pleased to be taking part in Day of Archaeology again…

Our project has had some periods of closure due to lack of funding over the past year, and we are in the midst of a fundraising campaign at the moment and seeking out new ways to fund conservation of the 2nd half of the Meads cemetery; as well as expand and take forward the CSI shopping mall lab concept. We are open 10-4 Tuesdays, Thursdays and Fridays at the moment, and possibly might add Saturdays for July and August. Although we had to stop conservation work for a large part of last year, work on recording the large bead assembly, and reviewing the results of the conservation work took place, and the Assessment Report for Meads II is with the Canterbury Archaeological Trust editors and hopefully out soon. I shall be away for most of the next 2 months (family illness and then conserving on site for Rutgers University Dig in the Upper Sabina Tiberia Valley, Italy). So today we started to confirm plans to ‘down scalpels’ and carry out a further review of the conservation work and invite volunteers and visitors to attempt reconstructions of our grave groups while I am away. We also need to compile a list of research questions we may have about materials we might want to investigate further, with the portable Hitachi Scanning Electron Microscope (SEM) that is coming to the lab soon – thanks to a generous scientific equipment grant that has recently been awarded to Oxford University (RLAHA) for the CSI project and general conservation use, by the Clothworkers’ Foundation.

Our partners, Sittingbourne Heritage Museum have counted well over 18,000 visitors to date; and last summer’s count of conservation volunteer hours topped 5,000 !!

The morning’s activities:

Heritage Studies MA student Vicky Price interviewing artist Rob Bloomfield about his work with CSI.

 

Volunteer Vicky Price (Heritage Studies [contemporary practice] Kingston University, MA student] and I discussed her work on shield studs from grave 111, and her main task for the day – her desire to interview me and our resident artist, Rob Bloomfield for our views on the relationship between art & science in our work, and processes of how we are working with the CSI project, for her dissertation (working title: “Narrative, craft and the investigative conservator”)

Vicky’s interview with Rob then turned into a larger discussion about authenticity vs. creativity in his drawings and also his observations that the work of the investigative conservator is a bit like that of a sculptor, but at opposite ends of the spectrum… and he came up with the term “intricate deconstruction”. It is great to have such a wide mix of people involved with this conservation project… and really great to have Rob’s fabulous range of illustrations – today he was sketching ideas for a poster to advertise summer workshops and this also resulted in a possible new T-shirt design, an Anglo-Saxon Warrior (We have an unusually high proportion of warrior graves at our site)… unfortunately, the sword ended up looking more Roman than Anglo-Saxon, so this is not the final copy – it is an interesting and sometimes tricky collaboration… Rob is an unemployed artist, and this is his first experience working with a professional archaeological project.

Rob’s sketches for designing a poster advertising summer workshops “Hands on the Past”

Rob’s Anglo-Saxon Warrior drawing (although sword and scabbard should be longer)


Comments { 0 }

Nature Reserves & World War Two Archaeology

My job involves visiting and advising on management of archaeological sites for the UKs largest wildlife charity, the Royal Society for the Protection of Birds (RSPB). We manage land across Britain from Shetland to Cornwall, Suffolk to Ceredigion and also throughout Northern Ireland. I get to see an amazing variety of sites from shell middens to hillforts to 19th century timber storage ponds – thousands of sites including 200 which are Scheduled (legally protected). Many of the best preserved archaeological sites can be found in wild places because this land has not been subject to intensive agriculture or commercial development. In particular we have hundreds of World War Two sites and I’d stick my neck out and say we must have one of the largest and best preserved collections of any land owner (with exception of the Ministry of Defence!).

The military used many wild places for training, storage,  firing/bombing ranges or  fortified them against invasion.  Heathland and coastal wetland were particularly heavily used because they were out of the way spotst where they could conduct live firing. The military flooded areas as a form of  invasion defence, leading wildlife to recolonise in the 1940s – so conservationists have alot to thank the military for in Suffolk, see:

http://www.rspb.org.uk/reserves/guide/m/minsmere/archaeology.aspx

Today I visited two wetland sites in Suffolk which have well preserved buildings – RSPB Boyton Marsh and Hollesley Marsh in Suffolk. I was hosted by wardens Dudley, Reg and Aaron – a happier crew you will not meet, and once you get to see where they work you can understand why. Nice sunny day in the countryside, quiet landscapes with grass bending in the wind and some beautiful concrete block houses and pillboxes! Boyton was an Armoured Fighting Vehicle (AFV) firing range where tanks trained in the run up to D-Day and a group of block houses survive which would have operated pulley systems to move targets for the tanks to fire at. It is hard to imagine the noise, and the tanks trundling past today. At Hollesely we have a beautiful pillbox, which was part of the coastal crust of defences that carpeted the east coast of England – and a nice place to stop on a walk, eat your sandwiches and look at the view. We discussed how we good interpret these sites for visitors and keep them in good order – luckily,  by and large they were built to last! Returned home to see the kids for a Romans vs medieval knights battle……historical accuracy is everything to us archaeologists.

Comments { 0 }
A detail of a portion of the belt with the mounts complete and intact, showing the lion motif

Rubicon’s Best Ever Find? Discovering A Uniquely Preserved Medieval Object

Today has been a typically varied day in the offices of Rubicon Heritage; we have just this week relocated our main Irish office from an industrial estate in Little Island to a much more central premises in Midleton, where our new neighbours fix pianos! Amidst the chaos of the move and some of the less glamorous but vital aspects of running a commercial business (such as checking and authorising payments, reviewing accounts and writing tenders) there has been one real highlight that I want to share with you. As Cork experiences horrendous weather conditions and widespread flooding, the Irish Summer has been forgotten in the Rubicon offices. The reason for this is an email I received yesterday, which revealed that we had discovered what appears to be an internationally significant archaeological find.

What is particularly interesting about this find is that it is an advertisement for the wonders of archaeological conservation. During archaeological excavations for Cork County Council on a medieval castle site in Caherduggan, Co. Cork last year, we uncovered a well which contained a fantastic array of objects. Amongst the treasure trove of material that emerged from its muddy depths were a medieval leather shoe and an exquisite medieval bone die. But most interesting was a long strip of leather, with what appeared to be metal studs along its length (to read a post about when we discovered it see here). We initially thought this might be a belt, and without  further ado sent it off to the conservator, Susannah Kelly of University College Dublin, to see what remained.

The leather belt on its discovery at Caherduggan Castle, Co. Cork

The leather belt on its discovery at Caherduggan Castle, Co. Cork

After months of painstaking work, leather specialist John Nicholl took possession of the belt from Susannah this week, and yesterday sent me on some photographs of the now conserved object. When I opened the attachment to view the pictures I was greeted with a jaw-dropping sight- one of the most beautiful archaeological objects I have ever come across. The images revealed a phenomenally well preserved strip of leather with buckles at each end, and hinged heraldic shields mounted along its length. Excitement spread throughout the office like wildfire and I quickly got sidetracked, spending long minutes gazing at reference material. We put up a post here to share the information, and I arrived to work this morning to find some very interesting and helpful comment and responses. What we initially thought may be a scabbard belt is perhaps more likely a decorated medieval horse harness, undoubtedly the best preserved ever found in Ireland (and quite possibly Britain as well). All that normally survives of these decorated trappings are single harness pendants, but here we have a virtually complete example!

The well preserved buckle still attached to the leather, and partial pendants

The well preserved buckle still attached to the leather, and partial pendants

I began this morning with a look through my trusty copy of The Medieval Horse and It’s Equipment to learn more (meanwhile bombarding an equally excited specialist John with questions!), and it appears we really may have something special with this find. Indications are that in the 13th century the use of these pendants on horse equipment became more numerous, but were in decline by the end of the 14th century- this may suggest a potential 14th century date, which would tie in with our other objects from the well. Next I fired off an email to the Office of the Chief Herald in Dublin to see if they could tell me anything about the heraldic symbol on the pendants, which appears to be a lion. They informed me that a lion rampant is associated with the O’Keeffes, a Cork family, although there is no evidence as yet that the object belonged to them. They also pointed out that on the Caherduggan pendants the lion is facing the opposite way to what would normally be expected in heraldry (described as lion counter-rampant or lion rampant to the sinister), making it a rarity. Contact with the National Museum of Ireland revealed that they have a collection of individual pendants that have been retrieved from illegal metal detectorists, so we now have the always enjoyable prospect of a trip to the Museum to have a look for some parallels. I also took a few minutes to look through the Portable Antiquities Scheme database to discover if there were any parallels in the UK (to have a look at the results I got see here).

A detail of a portion of the belt with the mounts complete and intact, showing the lion motif

A detail of a portion of the belt with the mounts complete and intact, showing the lion motif

We have barely scratched the surface of uncovering the story of this beautiful and potentially unique find, and there is undoubtedly much more to add before we are finished. However, for today we are still trying to get to grips with the excitement of the discovery, and are busy getting experts together so we can explore all the possibilities- all in all a very good day to be in the Rubicon office! To follow updates on this object and other work we carry out you can check out our blog at www.rubiconblog.com!

The other buckle with complete hinged pendants visible

The other buckle with complete hinged pendants visible

 

Comments { 0 }

Gearing Up For Public Archaeology at the Fortress of Louisbourg, Among Other Things

I believe the normal archaeologist work day is to enter the office (or the field) in the am with a work plan then watch it change almost immediately.This is why I like this job, it’s ever-changing.  I became smitten with the idea of archaeology and palaeontology at an early age (grade 2 I believe) yet I never would have considered what the ‘job’ would be. Back then, it was dreams of digging and discovery. Now it’s about protection, understanding and education much of the time.

Talking to local students and their teachers about archaeology at Louisbourg, at the rescue excavation site of an 18th century fishing property on the North Shore of Louisbourg harbour at the Fortress of Louisbourg National Historic Site of Canada in 2010

Continue Reading →

Comments { 0 }

Friday in the Office. Jake Streatfeild-James, Field Archaeologist, AOC Archaeology Group – North

I was in to work early this morning.  The sun was out as I headed around the bypass to the office. As soon as the key is in the door it starts to tip down outside, so I’m glad that, whereas I’m usually in the field, today I am helping out the conservation department process a large assemblage of Roman ceramics.  The finds come from Roman fort in central Scotland, near the Antonine Wall. During the last four days I’ve been labelling pot, some of which I remember from last summer’s excavation.

I will have worked for AOC in their Edinburgh office for a year this July, first as a site assistant and now as a field archaeologist.  In my first year I’ve learnt a lot: what it means to do a ‘watching brief,’ what to look for during an evaluation and the art of report writing, even picking up some experience of community archaeology along the way.

Carrying on from where I left off yesterday afternoon, I’m continuing to excavate the material left inside a Roman bowl.  The bowl was lifted from ground in one piece, and was discovered in the backfill of a pit which contained other Roman material. On Roman sites, pots like this often contain human or animal remains- burials or ritual deposits, but in this case there is only the backfill of the pit, suggesting that the bowl had outlived its use and was discarded.

Next there is a collection of Samian, high status pottery from Roman Gaul.  This group of sherds was discovered in a concentrated area of the site, and might make an entire vessel: time to break out the adhesive! This is a first for me and my only comparable experience is gluing a mug back together.  This is a tad more complicated.

It nearly goes back together, and I don’t have any bits left over. The conservators agree it’s a success. Would they lie to protect my feelings?

Finally there’s some preparation to do for a watching brief on Monday morning. My site box, spade, and personal protective equipment all need gathering together and checked before I leave for the weekend.

 

Hope it doesn’t rain on Monday.

Comments { 0 }
Conservation of Archaeological Metal Assemblage

Conservation of Archaeological Metal Assemblage

I am an objects conservator at AOC Archaeology group, a commercial archaeology company based in Loanhead, Midlothian, Scotland. There are only two of us in the department so we are kept very busy and are involved in all sorts of projects with every day being completely different. We conserve and stabilise all the finds that our archaeologists in the field excavate.  Often we are the first non-archaeologists to deal with freshly excavated materials and we are constantly ensuring that the materials gain their archaeological potential.

At the moment I am conserving a large number of finds from two sites excavated by our London office. The purpose of the conservation is to stabilise the finds for the long-term archive as well as possibly reveal new details on the surface of the objects, helping the specialists identify and describe the finds.  The finds are all metal – iron, lead and copper alloy with a large number of Roman coins and many coffin nails.

All the artefacts were covered in thick layers of soil and corrosion obscuring the surfaces and masking any detail. Following x-raying of the finds, I cleaned the iron artefacts using an air abrasive machine and the copper alloy items using mechanical methods (scalpel, bamboo skewer) carefully under a binocular microscope.

Me cleaning a copper alloy spoon under the microscope

 

Roman coin after conservation

 

This morning I have been finishing the last few objects and taking after treatment photographs. This afternoon I will be documenting the treatment of each object. As the objects were excavated in London we have to follow a specific documentation procedure set by the Museum of London. Each object has a A5 proforma card with specific information about the find, its condition and how it was treated.

While I have been working in the lab Alan Braby a freelance illustrator has come in to do a recorded drawing of one of the amazing Roman altars that we have been conserving recently. If you would like to find out more we set up a blog about the conservation work we have done on these two Roman altars excavated at Lewisvale Park. Here is the link: http://www.aocarchaeology.com/lewisvale-roman-altars/

Comments { 0 }