British Museum blog

Piecing together the Chiseldon cauldrons puzzle

Alexandra Baldwin, British Museum

Alexandra Baldwin working on one of the Chiseldon cauldrons

As is often the case, the painstaking process of excavating the cauldron I’m working on has been more complex and time consuming than we initially thought.

The majority of the cauldron was lifted from its findspot in a block of soil supported by plaster bandages. Hundreds of smaller fragments were also removed from around the object during excavation. The fragmentary state of this cauldron is partially due to the fact that it was buried upside down, and over time the weight and the pressure of the overlying soil crushed and distorted it.

I began by carefully cutting away thin strips of plaster to reveal the top of the block and clear soil from the metal. With heavy clay soil, which is more solid than the objects, this has to be done with great care using scalpels and leaf trowels to remove soil dampened with water and alcohol.

One of the Chiseldon cauldrons before being unwrapped

Working down in layers, the sheet metal is uncovered, and the true condition of the object revealed. It is highly fragmentary and even undisturbed areas are in pieces.

Fragments loose in the soil have to be rejoined back onto larger sections immediately otherwise their location will be lost. This is done using thin tabs of nylon gossamer, a thin random weave of synthetic fibres, adhered over the join.

Removing the plaster support and soil from around the object makes it very unstable and because of this you are unable to see the entire object at once; the metal is so thin and fragile that it is unable to support its own weight.

I have now laid out the fragments from the excavation on a large table and have been looking for joins between them, and also between the fragments and metal contained in the soil block. Although I have found a number of joins there have been disappointingly few.

Fragments of one of the Chiseldon cauldrons

Very quickly it became apparent that there was something strange about this cauldron – there seemed to be too much copper alloy – several folded layers in the block as well as large sheet fragments.

From knowledge of other cauldrons we can tell that they are made in sections riveted together; the iron rim supporting the handles, then below this, two sections of copper alloy bowl. As I began to reveal more it appeared that there were two bases on top of each other – was this two cauldrons one inside another? Or were we looking at areas of a separate cauldron either displaced during burial or placed into the pit in fragments?

As each layer is revealed the position of the fragments is carefully recorded. Stephen Crummy, one of the Museum’s illustrators, has been using 3D laser scanning and photogrametery to map the block.

The next stage will be to try and decipher and interpret the remains. Then, after supporting and stabilising them, we will remove sections of the metal, effectively disassembling the object from around the soil.

The Chiseldon cauldrons research project is supported by the Leverhulme Trust

Find out more about this research project

If you would like to leave a comment click on the title

Filed under: Archaeology, Chiseldon cauldrons, Conservation, , , ,

2 Responses - Comments are closed.

  1. Ken Ormsby says:

    Saw the section on your work with the cauldrons on Digging for Britain. Fascinating, keep it up, can’t wait to see the final conclusions and reconstructions etc.

    Like

  2. Cassy Cutulle, UCL says:

    Very intriguing, can’t wait to see the publication! Thank you very much for the lecture and the tour of the labs today, Alexandra!

    Like

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 14,347 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

As part of our #MuseumInstaSwap with @ImperialWarMuseums, we’ve been given special access to the Churchill War Rooms – located deep below the streets of Westminster.
This is Prime Minister Winston Churchill’s bedroom, which includes his private desk, briefcase and papers, his bed and chamber pot and even an original cigar! The bedroom is located close to the Map Room, keeping Churchill as close as possible to the epicentre of Cabinet War Rooms.
Following the surrender of the Japanese Forces the doors to the War Rooms were locked on 16 August 1945 and the complex was left undisturbed until Parliament ensured its preservation as a historic site in 1948. Knowledge of the site and access to it remained highly restricted until the late 1970s when @ImperialWarMuseums began the task of preserving the site and its contents, making them accessible to as wide an audience as possible and opening them to the public in 1984.
Discover more stories from London’s museums with #MuseumInstaSwap We’re exploring the Churchill War Rooms – the secret underground headquarters of the British government during the Second World War – in partnership with @ImperialWarMuseums for #MuseumInstaSwap.
The fear that London would be the target of aerial bombardment had troubled the government since the First World War and in 1938 the basement of a Whitehall building was chosen as the site for the Cabinet War Rooms. From 1940 to 1945 hundreds of men and women would spend thousands of vital hours here and it soon became the inner sanctum of British government.
Here you can see the wall of the Map Room, detailing the positions of British convoys across the world, which has not changed since 1945! Today in #MuseumInstaSwap we’re beneath the streets of Westminster to discover the hidden secrets of the #WW2 Cabinet War Rooms, which is part of @ImperialWarMuseums.
This is the underground bunker that protected the heart of Britain’s government during the Second World War as Prime Minister Winston Churchill and his inner circle plotted the route to Allied victory. It’s an amazing experience to step back in time and walk in the footsteps of Churchill, glimpsing what life would have been like during the tense days and nights of the Second World War. This archive photo shows Churchill at his desk in the Map Room at the Cabinet War Rooms. Beside him, Captain Pym of the Royal Naval Volunteer Reserve (RNVR) takes a telephone call. To this day, the Map Room has remained exactly as it was left on the day the lights were switched off in 1945.
© IWM (HU 44788) The collections of the @ImperialWarMuseums present stories of wartime life from many perspectives. During the First World War, hunger seriously affected the civilian populations of all the combatant nations.
Germany introduced numerous government controls on food production and sale, and these rationing cards show how the distribution of essentials such as meat, bread and milk was restricted. But the British naval blockade caused real suffering, even starvation. Serious shortages of food and resources led to price rises, riots and strikes.
Discover more stories from London’s museums with #MuseumInstaSwap In the First World War Galleries of @ImperialWarMuseums there are many stories of what life was like for ordinary civilians. These ration books show how staple foodstuffs like meat, butter and sugar were carefully distributed in the UK, where hunger caused by naval blockages was a serious threat on the home front.
The government introduced rationing in London early in 1918 and extended it nationwide by the summer. People now got fair shares of food and although supplies were limited, nobody starved. British civilians defied German expectations by accepting this state intrusion into their daily lives.
Discover more stories from London’s museums with #MuseumInstaSwap MuseumInstaSwap Today for #MuseumInstaSwap we’re exploring the fascinating First World War Galleries at @ImperialWarMuseums, to learn more about the impact of the war on ordinary people.
Hunger seriously affected the civilian populations of all the combatant nations. Agriculture and food distribution suffered as a result of the war, and naval blockades reduced food imports, which forced up prices and encouraged hoarding. Governments responded by putting price controls on staple foodstuffs.
Women and children queuing for food became a common sight in cities across Europe. This photograph from the archives of @ImperialWarMuseums shows food queues in Reading, England. The need to queue was lessened when rationing was introduced during 1918.
© IWM (Q 56276)
Follow

Get every new post delivered to your Inbox.

Join 14,347 other followers

%d bloggers like this: