Corinth. AE 11, 320-290 BC. 

Pegasus flying left.
Trident upwards, H to left, dolphin to right. 

SNG Cop. 169; BCD, Korinth 279; Lindgren III, 121 (this coin). 

With permission of Münzen & Medaillen (DE) GmbH, Auction 21, Lot 407, May 2007.