Ex Noble Numismatics Sale 118, lot 1593. Previously Numismatic Ars Classica Auction I, Zurich May 19, 1999 (lot 1233) and the Hannibal Collection, Noble Numismatics Sale 112, (lot 3830) and Sale 64 (lot 2418).
Jenkins records only two examples of this coin struck from these dies with only twenty recorded Thermai tetradrachms known. A hoard has provided several more examples including this piece.
The signature KLH of the engraver has been suggested to be that of the master engraver Kletias. The issue followed the destruction of Himera in 409 B.C. and the population that fled were allowed to settle at Thermai next to the hot springs. This new city was also inhabited by Carthaginians who dominated that city. The city was allowed to strike a very small quantity of coinage similar in manner to that struck by other Sicilian Carthaginian mints. Only four obverse and five reverse dies are known for the coinage.