British Museum blog

Manufacture, wear and repair of the Chiseldon Iron Age cauldrons


Jamie Hood and Alexandra Baldwin, British Museum

With the Iron Age Chiseldon cauldrons excavated and cleaned to expose the metal surface we are beginning to see interesting technological features and evidence of manufacture revealing them to be sophisticated and high status objects.

Tool marks on the surface from the original manufacture

Tool marks on the surface from the original manufacture

Although they’re over 2,000 years old, different tool marks from shaping and thinning the copper alloy are preserved on the surface of the metal. These suggest the careful and deliberate use of specific tools for different jobs, indicating that the objects were made by a craft specialist skilled at working sheet metal.

Faint incised lines marking-out the position of rivets

Faint incised lines marking-out the position of rivets

Other features likely to relate to construction are the lines, faintly incised into the surface of the sheet copper-alloy and only visible in raking light. These appear to mark the overlap of plates making up the sections of the cauldron, and the regular distribution and position of rivets indicating that the cauldrons were carefully designed and made.

Examination is also showing that, while the 12 cauldrons are broadly similar in their design, there are variations in their size, shape and construction. We have already identified three different types of rim construction. These differences are extremely intriguing and suggest that the cauldrons were made by different makers and/or at different times.

Multiple repair patches on the cauldron base

Multiple repair patches on the cauldron base

Another intriguing feature we are encountering is a high number of patched repairs. Some repairs appear to have been applied at the time of construction and placed over fatigue cracks caused by raising the metal. Others quite clearly cover areas of damage caused during the useful lifetime of the cauldrons, indicating that they were used and repaired over a period of time and were already old and well-loved items at the time of their burial.

Preserved details like this mean that while the cauldrons are in relatively poor condition there are minute pieces of evidence that allow us to build up a wider picture of how the cauldrons were designed and made, and really bring the objects to life by allowing us to see the craftsman’s thought process and the practical application of their art.

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,

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

Join 14,261 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

Beatrix Potter was born #onthisday in 1866. Here are some of her flopsy bunnies! 🐰
#BeatrixPotter Made in AD 700, the exquisite Hunterston brooch was found at Hunterston, Ayrshire during the 1830s. It is a highly accomplished casting of silver, richly mounted with gold, silver and amber decoration. It is sumptuously decorated with animals executed in gold wire and granules, called filigree. In the centre of the brooch is a cross flanking a golden ‘Glory’ representing the risen Christ #MedievalMonday
The Hunterston brooch will feature in our forthcoming #Celts exhibition, on loan from @nationalmuseumsscotland. Encounter an African contribution to the global carnival tradition through contemporary artist @zakove’s Moko Jumbie sculptures in the Great Court. These spectacular 7-metre-high male and female figures in striking black and gold costumes are inspired by aspects of African masquerade. #ZakOve
Find out more about our #Africa season this summer with events and displays at www.britishmuseum.org/whats_on/celebrating_africa.aspx The spectacular Sutton Hoo treasure was discovered #onthisday‬ in 1939!
This is a purse lid from the Sutton Hoo ship burial. Wealth, and its public display, was probably used to establish status in early Anglo-Saxon society much as it is today. This purse lid from Sutton Hoo is the richest of its kind yet found.
The lid was made to cover a leather pouch containing gold coins. It hung by three hinged straps from the waist belt, and was fastened by a gold buckle. The lid had totally decayed but was probably made of whalebone – a precious material in early Anglo-Saxon England. Seven gold, garnet cloisonné and millefiori glass plaques were set into it. These are made with a combination of very large garnets and small ones, deliberately used to pick out details of the imagery.
Purse lid. Anglo-Saxon, early 7th century AD. From Mound 1, Sutton Hoo, Suffolk, England.
#SuttonHoo #AngloSaxon The spectacular Sutton Hoo treasure was discovered #onthisday‬ in 1939!
Mrs Edith Pretty, a landowner at Sutton Hoo, Suffolk, asked archaeologist Basil Brown to investigate the largest of many Anglo-Saxon burial mounds on her property. Inside, he made one of the most spectacular archaeological discoveries of all time. Beneath the mound was the imprint of a 27-metre-long ship. At its centre was a ruined burial chamber packed with treasures: Byzantine silverware, sumptuous gold jewellery, a lavish feasting set, and most famously, an ornate iron helmet. The ship buried at Sutton Hoo is the largest Anglo-Saxon ship yet unearthed.
You can see the treasure from Sutton Hoo on display in Room 41.
#SuttonHoo #AngloSaxon The Arch of Constantine in #Rome was completed #onthisday in 315, drawn here by Canaletto.
Follow

Get every new post delivered to your Inbox.

Join 14,261 other followers

%d bloggers like this: