The Iron Age was the period in which the first coins appeared in Britain, and they are a major source of information on late Iron Age society. The main dataset of this material culture is the Celtic Coin Index (CCI), housed at the University of Oxford. Up to now, it has existed mainly on paper index cards (more than 80,000). This talk introduces the Celtic Coin Index Digital (CCID) project aimed on creating a fully accessible database of this living archive on a Linked Open Data platform. The CCID classification is based on the latest generally agreed taxonomy, ABC (Ancient British Coins). An online edited version – IACB (Iron Age Coins in Britain) – is now available as a digital research tool which provides access to an edited ABC online. This paper will also present recent work undertaken to create the IACB and detail its connection to the CCID.