Watch List notes:

Bithynia, Kalchedon (c. 4th Century BC), AR Drachm, 3.80g, Bull standing left, ear of corn below, k above, rev. quadripartite incuse square with 'granulated' pattern (Weber 4849; cf. SNG {Copenhagen}, 352; SNG {BM}, 104; HGC VII, 511), almost very fine.
provenance
With dealer's ticket, stating: "Purchased London, 3 November 2001"
Estimate: £90 - £120