British Museum blog

The Beau Street Hoard: Not quite the end… conservation, outreach and further investigations

replica of coin block before conservation
Hazel Gardiner, Metals Conservator, British Museum

The soil block after excavation of the hoard and prior to dismantling and return to the archaeologists who carried out the excavation.

The soil block after excavation of the hoard and prior to dismantling and return to the archaeologists who carried out the excavation.

For those who have been following the progress of the conservation of the Beau Street Hoard on the blog, I am delighted to announce that all the coins – around 17,500 of them – have now been cleaned to required identification standards, that is, to the point where the legend and significant features are readable. Conservator Julia Tubman carried out the bulk of this work on the c.17,500 coins contained within the hoard. Additional work has been carried out on a small number of these coins and conservation has also been carried out on c.400 coins that were initial finds from the outer edges of the hoard, before the hoard proper was unearthed. This last group of coins were in particularly poor condition and most required substantial chemical and manual cleaning. These coins were held in numbered paper envelopes, some of which corresponded to small find numbers allocated when the hoard was excavated.

Envelopes containing initial coin finds associated with the Beau Street Hoard

Envelopes containing initial coin finds associated with the Beau Street Hoard

The soil block that held the hoard has now been dismantled and returned to the archaeologists who carried out the initial excavation for final sifting and checking for palaeoenvironmental remains: that is, material that might provide further contextual information about the coin hoard.

A washed but otherwise untreated coin from surface scatter coins showing the thick cuprite (copper oxide) layer obscuring the surface.

A washed but otherwise untreated coin from surface scatter coins showing the thick cuprite (copper oxide) layer obscuring the surface.

At the time of Julia’s last post, she reported that one of the coin clusters (bag 4), had been scanned. As with the other coins in the hoard, the clustered corroded coins retained the positions that they would have held in the bag in which they had been deposited. In this instance the bag shape was particularly well preserved. The initial scan was carried out at the British Museum by Martin Cooper of the Conservation Technologies Unit, National Museums Liverpool (NML). The scan data was used to create a 3D computer model, which was then 3D printed to make a replica of the coin bag using Selective Laser Sintering (SLS), a process that uses a laser to fuse particles of plastic or other material into the required three-dimensional form. A plaster cast was then made from the print and this was painted to resemble the original coin cluster, by conservators at NML.

replica of excavated coin block

The replica of bag 4

The replica has proved very popular among visitors to the Roman Baths and was shown at a Beau Street Hoard community consultation event run by staff at the Roman Baths earlier in 2013. Members of Bath Ethnic Minority Senior Citizens Association (BEMSCA) were among those who handled the replica. As a three-dimensional record of the original form of the coin bag, which of course no longer exists now that the coins have been conserved, the replica is an excellent supplement to the information gathered about the hoard, an invaluable means of allowing people to gain some sense of the physicality of (at least part) of the hoard.

Further exciting news is the forthcoming analysis of what appear to be animal skin remains from the bags used to store the coins. In one of Julia’s earlier posts she noted that traces of what appeared to be skin product, preserved by metal corrosion products, were found on the outside of each cluster of coins, suggesting that leather bags may have been used to house the coins. Professor Matthew Collins and colleagues at BioArCh (University of York), are hoping to extract collagen from the samples provided and to identify the species of animal skin used. Identification of the animal species will be made by peptide mass fingerprinting, an analytical technique for protein identification. We look forward to hearing the results of their investigations.

Possible skin product preserved by corrosion products from the coin beneath.

Possible skin product preserved by corrosion products from the coin beneath.

Find out more about the Beau Street hoard and the Roman Baths Museum fund-raising campaign.

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

Filed under: Beau Street Hoard, Conservation, , , , , ,

Receive notifications of new posts by email.

Join 12,962 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

Greece lightning: this exquisite bronze depicts Zeus, chief of the Greek gods #FridayFigure

In ancient Greece, powerful, shape-shifting gods provided compelling subjects for artists. The famous sculptor Phidias created a gold and ivory statue of Zeus, ruler of the gods, that was over 13 metres high for his temple at Olympia. One of the Seven Wonders of the Ancient World, it symbolised the awesome presence of the god at his sanctuary site. There was also drama to be found in the gods’ ability to change their form as a means of disguise. Zeus, ruler of the Olympian gods, could take animal form – he seduced Leda as a swan, carried away Europa as a bull and Ganymede as an eagle.

This bronze statuette splendidly represents the majesty of Zeus, ruler of the gods on Mount Olympus and lord of the sky. Zeus holds a sceptre and a thunderbolt, showing his control over gods and mortals, and his destructive power. Although just over 20cm high, this exquisite work appears to be a copy of a much grander statue that does not survive.

You can see this figure in our exhibition #DefiningBeauty, until 5 July 2015.
Bronze statuette of Zeus. Roman period, 1st–2nd century AD, said to be from Hungary.
#art #museum #exhibition #ancientGreece #Zeus #gods This beautiful watercolour of Tintern Abbey is by J M W Turner, thought to have been born #onthisday in 1755.

Even before he had entered the Royal Academy schools at the age of 14, Turner had worked as an architectural draughtsman. This training is evident in his fascination with the details of the famous ruins of this twelfth-century Cistercian Abbey in Monmouthshire, which he visited in 1792, and again in 1793. Tourists of the time were as much impressed by the way that nature had reclaimed the monument as by the scale and grandeur of the buildings. Turner's blue-green washes over the abbey's far wall blend stone and leaf together, and on the near arch the spiralling creepers seem to make the wind and light tangible. 
#art #artist #Turner #history #watercolour ‪#IndigenousAustralia is now open. Discover a remarkable 60,000 years of continuous culture in our new special exhibition.
This show is the first major exhibition in the UK to present a history of Indigenous Australia through objects, celebrating the cultural strength and resilience of both Aboriginal peoples and Torres Strait Islanders. See spectacular objects like Torres Strait Islander masks alongside significant paintings.
Organised with the National Museum of Australia, ‪the exhibition also includes important international loans.
#history #Australia #museum #BritishMuseum Happy #StGeorgesDay! Here he is killing the dragon and rescuing Lady Una on a medieval pilgrim badge
#history #StGeorge #dragon #IndigenousAustralia opens tomorrow. Here’s a sneak peek in the exhibition… 
#art #Australia #exhibition #BritishMuseum 
Objects pictured include: 
Roy Underwood, Lennard Walker, Simon Hogan and Ian Rictor, 'Pukara'. Acrylic on canvas, 2013. © the artists, courtesy Spinifex Arts Project. 
Charlie Allungoy (Numbulmoore) (c. 1907–1971), Ngarinyin Mowanjum. Pigment on composition board, 1970. Kimberley region, Western Australia. National Museum of Australia. 
Mask of turtle shell. Mer, Torres Strait, before 1855. 
Selection of shields:
Mulgrave River region, near Cairns, Queensland, c. 1900.
Adelaide Plains region, South Australia, before 1848.
South-east Australia, mid-19th century.
South-east Australia, before 1950. Legend has it that #onthisday in 753 BC Romulus founded Rome. Here's the myth on this coin
#history #coin #Rome #Romulus
Follow

Get every new post delivered to your Inbox.

Join 12,962 other followers

%d bloggers like this: