Why can I find any potin coins in my searches?
Unfortunately, potin, a high-tin bronze alloy, is not a term used in the original Celtic Coin Index records at Oxford. Potins have been recorded simply as cast bronze, much as Northover does. Theoretically, you could either 1) search for issues you know to be potins, or 2) look for cast bronzes where a metal analysis has been done, to see which ones are potin. However, the second choice would be unfruitful: while only about 2% of the specimen records in the Oxford CCI data show details of metal analysis, none of them are cast bronzes. Van Arsdell mentions the high-tin bronzes found in Kent, thus catalogued as Cantiian (Van Arsdell, Celtic Coinage of Britain, p. 7), and many Trinovantian/Catuvellaunian cast bronzes are high in tin. Northover has examples of high-tin cast bronzes among the Thurrock, Snettisham, Takely, Stansted, and Kelvedon types, as well as among some Durotrigan coins. As to when an alloy should be classed as potin, we have not found any conclusive, authoritative defin
