Kalchedon, Bithynia, AR Drachm, 5.3 g. 400-350 BC.

KALX, Bull standing left on ear of corn. 
Quadripartite incuse square of mill-sail pattern, the surfaces granulated. 

Sear SG 3738; SNG Cop 348; BMC 4-7. 

Sold by Stack's Bowers Galleries & Ponterio, October 2014 Baltimore Auction, Lot 11009.

Starting Price: $60.