Corinth, Corinthia, AE13, ca. 335-306 BC. 

Pegasos flying left, koppa below.
Ornate trident-head, owl standing left with head facing in left 
field, D-O across lower fields. 

BCD Korinth 253 (this coin); Price Bronze Class A, Group V, 54

With permission of Numismatik Lanz, Auction 105 (BCD Corinth), lot 253