Roman coin hoard excavated in Colchester

Latest news from Philip Crummy at the Colchester Archaeological Trust

In the days before banks, people would bury their money in pots for safe keeping rather than leave them lying about the house under the bed or in a cupboard. The money would be safe but things could still go wrong. Occasionally, the owners couldn’t find it again – imagine the panic! – or sometimes they died without telling anybody where they had hidden their cash.

Something like this must have happened on the site of the Hyderabad and Meeanee barracks on Mersea Road Colchester where last March we found a hidden stash of 1,247 Roman coins. They lay inside a small grey-ware pot which had been buried in the ground at a slight angle.

The coins are of a type known as antoniniani. The hoard is made up of issues of at least nine Roman emperors ranging from Gallus (251-3) to Victorinus (269-271). The latest coins in the hoard point to a date for its deposition in the early part of AD 271.

The antoninianus started life off as a silver coin issued in the early 3rd century but, by the time of the Hyderabad hoard, it had become very debased and ended up as a copper-alloy coin with a very thin silver coating. Severe inflation reduced its monetary value which is why later antoniniani are common finds on archaeological sites of the third quarter of the 3rd century. The Hyderabad hoard belongs to this period.

The burial of coins seems to have been more common in periods of unrest or uncertainty. The 270’s was a difficult time in eastern England because of civil war in the Roman Empire and serious raiding along the coast by foreign peoples. This explains why the Hyderabad hoard is not the first hoard of this period to have been discovered in the Colchester area. Over a hundred years ago, one, possibly two, hoards of the date were found in Colchester itself although the precise find spot is not known. Also over 6,000 antoniniani were found in three pottery vessels at Gosbecks in 1983, the latest coins dating to between AD 270 and 274. And some distance from Colchester, a hoard of about 657 antoniniani was discovered at East Mersea in about 1980. This fits the pattern with its latest coins being again in the range of 270 to 274.

When discovered, the Hyderabad hoard was carefully removed intact from the site and excavated indoors so that the positions of all the coins could be studied and recorded as the pot was emptied. The distribution of the coins in the pot in relation to their dates suggest that the coins had all been placed in there at the same time. In other words, no clear evidence was found to suggest that the pot had been used like a piggy bank with coins being added as time passed by. Instead all the coins appear to have been put in the pot at the same time and then buried. Interestingly many of the coins inside the pot looked as they had been placed in there in little stacks. From this, we can visualise the owner sorting out his money into neat piles on a table so that he could count it accurately before putting the coins in the pot stack by stack.

Samuel Pepys famously recorded in his diary what could go wrong if you had to resort to digging holes to protect your savings. The Dutch fleet was about to sail up the Thames and consequently Pepys, living in London, was worried about his money. So he decides to ask his wife to take £1300 in gold secretly to his father-in-law’s house in Brampton in Huntingdon and bury it there. But, horror of horrors, his father hadn’t a clue how to carry out this relatively easy task. The man simply buried the money in the middle of his front garden and, worse, did it in broad daylight for all to see. A few months later, an anxious Pepys was in the garden himself. He waited until it was dark, lit a candle, and then got to work. He found the buried treasure sure enough but – oh no! – the bag had rotted and, despite some frantic sieving, about 25 coins couldn’t be found.

The Hyderabad hoard had not been buried in somebody’s garden. Instead it looks as if it had been buried in the side of a field well away from prying eyes. The place were it had been hidden turns out to have been an interesting one because it was part of one of the defensive earthworks which protected pre-Roman Colchester (Camulodunum). This system of earthworks, known as dykes, originated up to a hundred years before the Roman invasion of Britain and the subsequent foundation of Roman Colchester. The Hyderabad hoard had been buried in the upper part of the filling of the ditch of the Berechurch Dyke which, until the recent excavations, had not been traced this far north. The dyke system at Colchester included at least 15 miles of earthworks and represents the largest complex of its type and date in Britain. This latest discovery adds about another half a mile to known extent of the complex.

The discovery of hoard has been reported to the Portable Antiquities Scheme and Treasure Department at the British Museum. The landowner, Taylor Wimpey, will then donate the hoard to the Colchester Museum and the people of Colchester just as they are doing with all the other finds from their sites on former Colchester Garrison land.

The excavations at the Hyderabad and Meeanee site were carried out by the Colchester Archaeological Trust on behalf of Taylor Wimpey who have funded all the work. RPS act as archaeological consultants to Taylor Wimpey and manage the project on the company’s behalf.

Burnham hoard in the lab

The metal work from the hoard have begun to be assessed in the lab at the Colchester & Ipswich Museum Resource Centre. Each individual piece has been weighed and measured, and given a unique catalogue number.

The cataloguing of the hoard material is an ongoing process, with each piece of metal work assessed and identified, for example using the decoration on the axes to attribute it to a particular type.

Several of the complete axes contained soil in their sockets, and the contents had to be carefully removed looking for any metal work or organic matter that may have been deliberately stuffed into the socket opening. The position and selection of broken pieces of metalwork contained within the sockets may give us an insight into the selection process of somebody in the Bronze Age.

As well as working on the metal work, the block lifted vessel needed some attention. The pot was x-rayed in its block-lifted condition, and from this you can clearly see the outline of two socketed axes – one appeared to be complete, and the other showed the blade end only. The lower areas of the pot show up as bright white areas, which is due to the high density of metalwork contained in the lower part of the pot. The x-ray was also important to see the extent of damage to the pottery; you can clearly see there is no ceramic material present on one side and that a piece of metal work has been pushed outside the pot.

The pot was then unwrapped and examined by Stefanie White (Conservator, Colchester and Ipswich Museums) to assess the condition of the pottery vessel, particularly in the areas where we knew damage had already occurred. Looking at the base and walls of the vessel, there were some clear fractures that needed to be addressed before we could even consider excavating the contents.

Stefanie surface cleaned the outside of the pot, and consolidated the areas around the fractures with some reversible conservation adhesive. A support of bandages, calico and a polymer was then made and wrapped around the base and sides of the vessel. This helped to reinforce the pottery and keep it stable, enabling us to start removing the metal contents of the pot.

The soil was removed in layers using the x-ray as a guide, and the position of the metal work was documented. Two complete and some fragments of socketed axes were removed, as well as part of an ingot and the tip of a socketed spear. As with excavating the inside of the socketed axes, we were keeping an eye out for any potential organic inclusions in the hoard.

Further soil was removed, and an area completely compact with metal work was found – this is the area of ‘white’ from the x-ray. As the objects at this point were so tightly packed in the vessel, the surfaces of the metalwork had corroded together, making it impossible to remove any further pieces. A new approach to the conservation of the pot and the removal of its contents is now being considered.

Bronze Age Hoard from the Burnham on Crouch Area

In late September Laura McLean (Essex FLO) was contacted by a landowner who had given permission for a metal detectorist to search on his land. He had said that a few interesting objects had turned up, and could he bring them in for examination. Well, a few interesting objects actually turned out to be a lot of metal work, forming a Bronze Age Hoard. The landowner and the detectorist Mr J Humphreys brought the objects into Colchester and Ipswich Museums to be examined and reported under the Treasure Act.

Mr Humpreys was on holiday in Essex when he made the discovery. About a week later, Laura was contacted by three Essex based metal detectorists who also had permission to detect on the same land. Mr W Hill, Mr C Mann and Mr G Starr had recovered even more Bronze Age material from the same area as the original find.

Whilst recovering the metal work, the three detectorists discovered part of an in situ pottery vessel associated with the metalwork. Running their detectors over the visible rim of the pot, it was clear there was more metalwork to be retrieved, but knowing that this was in its original undisturbed Bronze Age context, the finders made the decision to back fill the hole (after a few photos!), leaving the pottery and remaining metalwork where it was. They called Laura McLean for advice, who began to plan an excavation.

In early October, Laura McLean, Kate Orr (assistant FLO) and three members of the Treasure Team, Ian Richardson, Janina Parol and Caroline Barton joined the landowner and four metal detectorists to excavate the known area of the hoard.

A 2 meter square trench was excavated with the help of the detectortists to find the remaining metal work concentrations and to locate the pottery vessel. Once the area marking the pot was reached, a careful excavation around the vessel began.

Excavating the hoard area

Unfortunately the plough hadn’t left the pot untouched. The vessel was clearly damaged and partly missing on one side, and there were clear fractures on the side that was more intact. The vessel had also slumped slightly to one side.

So a fragile, fractured pot, full of very heavy metal work. Decision time – should we excavate the vessel and contexts on site, or block lift?

As the chance to excavate an in situ hoard is so rare (as most reported are out of context in the plough soil) and the fact there is pottery involved makes it even more unusual, we made the decision to block lift as this would allow us to get the maximum amount of information about the deposit. This would also give us the opportunity to x-ray the vessel back in the lab, giving us a clearer understanding of the order objects were deposited in the vessel.

wrapping the pot in clingfilm!

So, out came the cling film to hold the pot together whilst we dug around it and undermined it so that it could be lifted. This was a rather slow and painstaking process, making sure the vessel was supported whilst digging around it. Eventually the vessel was ready to be lifted, and for rather a small pot it was bloomin heavy with all the metalwork inside!

Excavating the pot

Lifting the pot

Work continues on the hoard at Colchester & Ipswich Museums…

Fab Flint Finds!

Flint is a very difficult thing to spot when out about in a field – well it is for me anyway. Oh don’t get me wrong, I can pick up bits of flint until the cows some home, but never ever have I managed to spot a worked piece! However, there are people out there with a sharp eye who manage to spot these fantastically crafted objects.

Quite often the flint I am given to to record onto the database are tools such as ESS-98FF03 a Mesolithic adze,  ESS-388BD4 a Neolithic polished axe or this exquisite barbed and tanged arrow head ESS-7B4111.

Bronze Age arrowhead

As interesting and beautiful as completed tools are, the main thing I have been working on this week is a load of old rubbish. In fact I have been recording and identifying Mesolithic rubbish from an assemblage found in the Colchester District, to be a little more precise.  Although a few tools were brought in with the assemblage, the majority of the finds have been waste flakes (discarded fragments of knapped flint) and cores that have had flakes and blades removed from the surface;  see  ESS-CFD107ESS-CFCDD4 and ESS-CFF7C4 for a few examples.

Bladelet core

These discarded waste flakes and cores were not needed or adapted into tools by prehistoric man, and they may not be as aesthetically pleasing to the modern eye as the completed tools, but they are vitally important to archaeologists. They help us to identify areas where knapping took place, which means we are identifying where the tools were actually being made. This can be really interesting, as flint can be a rare commodity in parts of the country, and tool production does not always take place at the source of the flint. All the ‘rubbish’ can actually be more informative than a discarded tool. So recording flint assemblages, or even only one or two pieces can help us to understand peoples interactions, use of the landscape and the materials available to them.

Flint is a wonderful thing, but it can also be tricky and misleading!! Not all of the flint brought into me for recording over the years has been worked by humans. The shaping of it can be entirely natural. A lot of smaller flint nodules can fit wonderfully well in the hand without having been worked at all. Even fractured flint nodules may be the result of the natural environment, such as frost fractured ‘pot lids’.

Given the right conditions (such as freezing and thawing) flint can break naturally in quite a regular looking way. This is because the structure of flint is like a large lattice or grid – so natural breaks will quite often be relatively straight or angular, which people can mistake as being man made due to their regularity.

It is this natural property of flint that made it such a great material to turn into tools. The lattice structure makes it relatively predictable as to where the breaks will form when pressure is applied, hence in prehistory we see a recognisable range of tools of similar design time and time again. These angular breaks are also exceptionally sharp – and some of the tools brought in for recording are still sharp today, thousands of years after they were made.

It can be tricky to spot some of the differences between natural fractures, damage caused by modern farming machinery and deliberate man made removals. If you bring a piece in for recording and it turns out to be natural breaks, rather than worked, you are still holding a piece of really old natural history in your hands that was formed millions of years ago!

Why don’t you check ESS-851F72, a fantastic example of natural history meeting human history – an incomplete Mezolithic Adze made from a flint nodule which is covered in a fossilised sponge.



Metal detecting… in Italy!

I just about have time for this short post -  Everyone is keeping me busy with new finds to record now that the metal detecting season is getting into full swing!!

I thought you may be interested in reading about Essex based detectorist Terry’s recent trip to Italy.

Terry was helping to spread the word about responsible metal detecting whilst participating as a volunteer at the Gabii Project,  an ongoing archaeological excavation that began back in 2007.

To see what the project is all about, visit the project website at http://sitemaker.umich.edu/gabiiproject/home.

Terry even wrote his own blog detailing his week on site http://bridgetsdads-bitofgabii.blogspot.com/

Colchester’s Festival of British Archaeology

Its been a busy week in Colchester celebrating our heritage as part of the Festival of British Archaeology

The festival kicked off in Colchester with the opening of our Medieval Treasures exhibition in Colchester Castle. Helen Geake (one of the Schemes Finds Advisors and regular on Time Team) came along to open the exhibition which contains artefacts and documents relating to civic pride, regal image and religious art.

The exhibition contains a cross loaned from the the Royal Collections, a late medieval enamelled gold cross which is still worn by the Abbot of Buckfast Abbey (Devon) each Christmas and several objects found by metal detectorists throughout the county including a gold finger ring (PAS record @  ESS-A3CCF3 ) and a copper alloy devotional badge depicting the crucifixion ( ESS-302D31).

The first weekend of the Festival saw our local Young Archaeologists (YAC) conducting a survey of the ruins immediately outside the front of Colchester Castle. As well as forming part of the defences of the Castle, there is also the remains of a Medieval Chapel, with origins going back to an Anglo-Saxon wooden chapel with painted wall plaster (part of which can be seen in the Anglo-Norman gallery of the Castle Museum).  The YAC members learnt how to draw scale plans and looked at Roman material recycled by the Normans for their building projects.

Across town from the Castle, there was a Medieval Fun Day at St Botolphs Priory, complete with medieval reenactors, music and crafts.  There was even a chance to discover more about the beasties and bugs of the natural world, such as  a stag beetle (called a Thunder Beetle) was believed to summon thunder and lightning storms!!

And if all that didn’t provide enough of a chance to find out more about archaeology and history in the area, there were opportunities to handle objects from the museums collection at two events in the Castle. Working with artefacts everyday and meeting metal detectorists can almost make you forget just how privileged we are to hold objects from the past, giving us a direct connection to people who lived in your area before you. These handling sessions were great for children and members of the public who are used to seeing history through textbooks and TV, and artefacts through glass cases in the museum. The reaction of both adults and children, when they realised they were holding a palaeolithic flint axe (one of the oldest human artefacts people are ever likely to see!) was just fantastic and really helped to bring history and archaeology to life.

The festival continues until the end of the week, and there are still more oppertunities to get involved. On both Thusrday (29th) and Friday (30th) between 10am and midday come along to the Castle Museum to hold some history – from stone axes, medieval horse decorations down to Victorian clay pipes! And if you want to hear me talk instead of typing, why not come along Friday to the Castle’s afternoon talk “The Public Contribution to Anglo-Saxon Archaeology” where you can find out how metal detected finds are helping to change our interpretations of the past.

Sam visits the Colchester Club

Sam Moorhead, the PAS Roman coins finds advisor visited the Colchester Metal detecting club to talk to them about exciting Roman coin finds from the county.

To Sam, and other coin specialists, ‘exciting coins’ aren’t just the beautiful coins that are practically in mint condition. All those horrid looking grotty green discs that most people think are worthless are actually a fantastic source of information for archaeologists.

If you know where the coin was found, even the most corroded coin can help us to piece together the past. Coins that are mostly illegibly may still have traces of design which an expert like Sam can use to identify them; in the fourth century for example there are a restricted range of very standardised designs so it is often possible to identify them from even the smallest trace of a figure or object. Even with completely illegible coins the module (size, thickness and weight) can give a suggestion of whether they are 1st-2nd century coins or later, helping to give a general impression of the dating on the site. Even with this relatively loose dating, specialists can use the relative proportions of different coins from different Roman periods to begin to characterise sites. For example, very broadly speaking, rural sites generally produce much higher proportions of nummi than urban sites, which often produce more late third century radiates. Coins from certain periods tend to be found in a more worn condition than others so if we don’t examine all the coins, including the worn ones some periods may appear to be quiet when there was actually lots of activity.

Loads of Roman coins have been recorded throughout Essex check it out! http://www.finds.org.uk/database/search/map/objecttype/COIN/broadperiod/ROMAN/county/ESSEX

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Colchester’s Terracotta Army

Colchester’s very own Terracotta Army has been created by the towns Young Archaeologists’ Club!

Part of Colchester Castle Museum was over run in late September by a range of warriors, horses and chariots. These fantastic creations were inspired by the Terracotta Army of China’s first emperor, Qin Shihuangdi, which is currently on display in the British Museum.

The YAC’s spent part of the morning learning about burial customs from around the world, including the Chinese Terracotta Army, and Colchester’s very own warrior burial from Lexden Mount (of display in Colchester Castle Museum).

 The day combined the wonderful artistic skills of young people from north Essex with their love of archaeology and history to create this impressive miniature army!

The army assembled Making a figure
Soldier attention! Young Archaeologists at work!