British Museum blog

The Beau Street Hoard: excavation progress

Julia Tubman, conservator, British Museum

As mentioned in previous blog posts, the Beau Street Hoard is not just one huge jumbled mass of coins, but actually at least six separate bags. My excavation plan is to remove these coins bag by bag, to preserve the groupings (which are potentially very significant), and give us a clearer view of the size and shape of each bag.

I had been concerned that the coins might have concreted together to such an extent that identifying separate bags would be very difficult during the excavation, but (fingers crossed!) thus far the removal of individual bags has progressed remarkably smoothly. I have managed to retrieve two whole bags of coins. I have numbered these bags five and six, and they are the two smallest bags at the northern end of the block in the x-ray (five being the smallest).

The block, after the removal of bags 5 and 6

We were excited to see that bag six almost exclusively contained denarii (the smaller coins with a high silver content discussed in Eleanor’s blog post last week), suggesting that the coins might have been bagged by denomination. Of the approximately 3,000 coins I excavated of this bag, I have cleaned around 1,000, and thus far the latest coins we have date to the third century AD.

There are actually a very small number of coins older than the third century contained within the bag: one coin was minted during Otho’s very short reign (AD 69), and an even older one, worn almost flat, minted at the end of the Roman Republic by Mark Antony (just prior to the battle of Actium in 31 BC).

This means that some of the coins were centuries old at the time of the final deposition of the hoard. As I’m cleaning the coins bag by bag in the order excavated, I haven’t yet got round to cleaning the coins kept in bag five, but thus far these all appear to be radiates.

A very worn coin minted by Mark Antony, circa 31 BC

As you can see in the photographs, it is quite easy to tell where one bag ends and another begins. The orientation of the coins themselves and the very bright blue corrosion helps a lot, but there are also other markers. The bags that held the coins would have been organic in nature (made from either an animal or plant product).My guess would be leather as they would have to be strong enough to hold large numbers of coins. Unfortunately, even organic material which has been treated and processed to form objects doesn’t always survive easily in Britain, which is why most of our surviving artefacts are made from stone, ceramic or metal. With this in mind, I knew that any piece of bag that might have survived would be in very poor condition, and I was prepared to look for scant pieces of evidence preserved in the corrosion generated by the coins.

Denarius bearing the emperor Septimius Severus, AD 193-211

Happily though, I think that I have found fragments of leather (see the light brown material loosely attached to the coins), exactly where I know the bags would have been. The leather is obviously very degraded, and as the fibre network has broken up, the leather has shrunken and split resulting in the flaky incoherent material we see today. I have taken some samples of this material, and hopefully my identification of this will be confirmed by a specialist soon.

The next stage of the excavation- the removal of bag 2

After three weeks I now have a much better understanding of the size and shape of the hoard. There were no more coins beneath bags five and six, but the x-rays taken through the side suggest this is not the case throughout the rest of the block – we suspect there might be more bags of coins beneath the six already identified.

The area excavated thus far shows that the floor of the cist is obviously not even, but seems to have been dug in a rough pit-like way. As yet I have found no evidence of any kind of wooden box that might have held all of the bags, and as I have found pieces of tile pressed up against the coins, I actually doubt that there ever was.

Given the way in which the bags have been piled (I do not want to destabilise the central bags by removing their supports), and to get an idea of what the bags of coins in the middle of the block look like, I will now begin excavating ‘bag two’ at the southern end of the block. I’m sure there will be more exciting developments to report.

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: Archaeology, Beau Street Hoard, Conservation, , , ,

5 Responses - Comments are closed.

  1. ritaroberts says:

    What a fantastic project you have Julia,it looks very challenging Good luck and thankyou for sharing.

    Like

  2. Neat, thanks for posting!

    Like

  3. Stephen Trinder says:

    Excellent info. Keep updating

    Like

  4. Teresa Moreno says:

    Very nice work. Keep it up!

    Like

  5. I have just discovered the British Museum blog and it is great! It’s like ‘Night at the museum’ – interesting behind-the-scenes insights. I shall be tweeting, pinning and linking to your posts!:)

    Like

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

Join 16,341 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

This is an exquisitely decorated purse lid from the Anglo-Saxon burial at #SuttonHoo, which was brought to the world's attention #onthisday in 1939. In this object the quality of craftsmanship can really be appreciated. The lid is only 19cm in length but it must have been incredibly valuable. The outstanding nature of the finds at Sutton Hoo points to this being the burial of a leading figure in East Anglia, possibly a king. The landowner Mrs Edith Petty donated the discovery to the British Museum in 1939.
#SuttonHoo #Gold #Archaeology #AngloSaxon Today we’re celebrating the unearthing of the beautiful Anglo-Saxon objects from #SuttonHoo, which were found #onthisday in 1939. Arguably the most iconic of all the objects, this helmet was an astonishingly rare find. Meticulous reconstruction has allowed us to see its full shape and some of the complexity of the fine detailing after it was damaged in the burial chamber. The gold areas of the helmet reveal a dragon or bird-like figure – the moustache forms the tail, the nose forms the body and the eyebrows form the wings, with a head just above. Another animal head can be seen facing down towards this.
#SuttonHoo #AngloSaxon #Gold #Helmet #Archaeology #onthisday in 1939, just before the outbreak of the Second World War, archaeologists discovered the treasures of #SuttonHoo. It was one of the most important historical discoveries of the 20th century, and contained a wealth of Anglo-Saxon objects which greatly enhanced the understanding of the early medieval period. One of the most significant things to be found was an undisturbed ship-burial, the excavation of which can be seen in this photo. The 27-metre-long impression the ship left in the earth is highly detailed and was painstakingly recorded. The centre of the ship contained a burial chamber housing some spectacular objects – we’ll be sharing some highlights today.
#SuttonHoo #AngloSaxon  #archaeology #archive #blackandwhite This photograph shows a mountainside in #Angola featuring large engravings which may be thousands of years old. This rock art is found at Tchitundu-Hulu Mulume, one of a group of four rock art sites located in the south-west corner of Angola, by the edge of the Namib desert. The area is a semi-arid plain characterised by the presence of several inselbergs (isolated hills rising from the plain). Of the four sites, Tchitundu-Hulu Mulume is the largest, located at the top of an inselberg, 726 metres in height. There are large engravings on the slopes of the outcrop, most of them consisting of simple or concentric circles and solar-like images.

Our #AfricanRockArt image project team have now completed cataloguing 19,000 rock art images from Northern, Eastern and Southern Africa, and will be completing work on sites from Southern African countries in the final phase of the project. Follow the link in our bio to find out more about our African #rockart image project and the incredible images being catalogued.
Photograph © TARA/David Coulson. Our #AfricanRockArt project team is cataloguing and uploading around 25,000 digital images of rock art from throughout the continent. Working with digital photographs has allowed the Museum to use new technologies to study, preserve, and enhance the rock art, while leaving it in situ.

As part of the cataloguing process, the project team document each photograph, identifying what is depicted. Sometimes images are faded or unclear. Using photo manipulation software, images can be run through a process that enhances the pigments. By focusing on different sets of colours, we can now see the layers that were previously hidden to the naked eye.

This painted panel, from Kondoa District in #Tanzania, shows the white outline of an elephant’s head at the right, along with some figures in red that it is possible to highlight with digital enhancement.

Tanzania contains some of the densest concentrations of rock art in East Africa, mainly paintings found in the Kondoa area and adjoining Lake Eyasi basin. The oldest of these paintings are attributed to hunter-gatherers and may be 10,000 years old.

Follow the link in our bio to learn more about the project and see stunning #rockart from Africa. This week we’re highlighting the work of our #AfricanRockArt image project. The project team are now in the third year of cataloguing, and have uploaded around 19,000 digital photographs of rock art from all over #Africa to the Museum’s collection online database.

This photograph shows an engraving of a large, almost life-sized elephant, found on the Messak Plateau in #Libya. This region is home to tens of thousands of depictions, and is best known for larger-than-life-size engravings of animals such as elephants, rhino and a now extinct species of buffalo. This work of rock art most likely comes from the Early Hunter Period and could be up to 12,000 years old.

Follow the link in our bio and explore 30,000 years of stunning rock art from Africa. © TARA/David Coulson.
Follow

Get every new post delivered to your Inbox.

Join 16,341 other followers

%d bloggers like this: