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.

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Construction of St Peter’s Basilica began #onthisday in 1506. It was completed 120 years later. This print by Giuseppe Vasi was made in 1774
#print #art #history #Rome #Italy Happy 134th birthday @natural_history_museum! Here’s the British Museum before the natural history collection moved to South Kensington
#giraffe #history #BritishMuseum #museum Most Greek sculpture that survives from antiquity is carved from white marble, of which the Mediterranean has many natural sources. A relationship has often been assumed between the pure white of freshly cut marble and the idealism of Greek art. In fact, the opposite is true. Colour was intrinsic to ancient ideas of beauty. For centuries this has been a subject of fascination and controversy. The great Italian Renaissance sculptor Michelangelo revived the Greek idea of the human body but denied the use of colour. This was partly due to negative associations with the painted saints of the medieval period. During the European Enlightenment of the 1750s onwards, and increasingly into our own time, the preferred aesthetic was a truth to materials. Painting and gilding were seen as unnecessary and undesirable.

Sculpture in antiquity was often adorned not only with colour but also with different materials. The Greek marble statue of an archer reconstructed here was drilled and fitted with metal attachments. The figure originally held a bronze bow and arrow and a quiver was fixed to his left hip by a metal dowel. Individual locks of hair were made of lead. The colourful design of the man’s knitted all-in-one garment, often worn by peoples from the east, is clearly seen weathered into the marble surface under controlled lighting.

You can see this wonderful object in our exhibition #DefiningBeauty, until 5 July 2015.
#exhibition #BritishMuseum #ancientGreece #sculpture #art

Plaster cast of archer with reconstructed paint, based on a Greek original of about 490–480 BC, from the Temple of Aphaia at Aigina. Staatliche Antikensammlung und Glyptothek, Munich. Uta Uta Tjangala's masterpiece Yumari is a highlight of‪ #IndigenousAustralia, opening a week today
#exhibition #art #history #BritishMuseum #Australia #museum Hans Sloane's collection also ended up as the basis of the @natural_history_museum and the @britishlibrary!
To make more room for the increasing collections held by the British Museum, the natural history collections were moved to a new building in South Kensington in the 1880s. This eventually became the Natural History Museum. These images show some of the natural history specimens on display, including giraffes and a mastodon!
In 1997, the library departments left the Museum to be re-housed at the new British Library in St Pancras.
#history #BritishMuseum #collection #animals #books Hans Sloane's encyclopaedic collection became the cornerstone of the British Museum.
This drawer was once part of the materia medica - a sort of pharmaceutical cabinet - in the collection of Sloane. The cabinet had several drawers, each carefully constructed to keep out destructive insects. Some drawers had small compartments like this example, others contained glazed boxes with seeds, fruit, bark, roots, gums and resins inside. Each had a label written by Sloane with a catalogue number. The botanical or medicinal name of the subtance, where it came from and who collected it were then recorded in his catalogues of his collection.
As Sloane's interest in natural history grew along with his income, he was able to widen the scope of his collection from being primarily medical to being more encyclopaedic, representing the widest possible variety of substances and artefacts for his own reference and for others to consult.
© 2003 The Natural History Museum @natural_history_museum 
#history #BritishMuseum #collection #museum
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