British Museum blog

Lost Change: mapping coins from the Portable Antiquities Scheme

coin visualisation
Daniel Pett, ICT Advisor, British Museum
544

Today sees the launch of Lost Change, an innovative and experimental application that allows coins found within England and Wales and recorded through the British Museum’s Portable Antiquities Scheme (PAS), to be visualised on an interactive, dual-mapping interface. This tool enables people to interrogate a huge dataset (over 300,000 coin records can be manipulated) and discover links between coins’ place of origin (the issuing mint or a more vague attribution if this location is uncertain) and where they were discovered and then subsequently reported to the PAS Finds Liaison Officers.

While much of the the data is made available for re-use on the PAS website under a Creative Commons licence, some details are closely guarded to prevent illicit activity (for example night-hawking or detecting without landowner permission) and so this application has been developed with these restrictions in mind. An object’s coordinates are only mapped to an Ordnance Survey four-figure National Grid Reference (which equates to a point within a 1km square), and only if the landowner or finder has not requested these to be hidden from the public.

.

The distribution of coins is biased by a number of factors (a project funded by the Leverhulme Trust is looking at this in greater depth) which could include:

  • Whether metal detecting is permitted by the landowner, or the topography makes detecting difficult
  • Soil type and land use
  • Whether there is an active community of metal detectorists within the vicinity

544x306

The tool is straightforward to use. The left hand pane holds details for the place of discovery; the right hand side holds details for the place of issue, the mint. These panes work in tandem, with data dynamically updating in each, depending on the user’s choice. A simple example to get going is this:

  • Click on “Iron Age” within the list of periods
  • Within the right hand pane, click on one of the three circular representations and this will highlight where the coins from this mint were found in the left hand pane. The larger the circular representation, the more coins from that mint have been recorded.
  • If one clicks on any of the dots within the left hand pane, these are selected and an overlay in the right hand pane allows dynamic searching of the PAS database.

The PAS intends to build on this project at a later stage and will be seeking further funding to enable this to happen, with many more facets of discovery available to query the dataset.

Lost Change was funded through a £5,000 grant from the CreativeWorks London ‘Entrepreneur-in-Residence’ programme.

The PAS is grateful to Gavin Baily and Sarah Bagshaw from Tracemedia who developed the application, and everyone who has contributed to the PAS database.

If you have any feedback on the project, please contact the PAS via info@finds.org.uk.

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

Filed under: Portable Antiquities and Treasure, , , ,

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

Join 12,774 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

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
Follow

Get every new post delivered to your Inbox.

Join 12,774 other followers

%d bloggers like this: