Ainos, Thrace, AR tetradrachm. 16.16 g. 459-458 BC. 

Head of Hermes right, wearing petasos.
AINI, goat walking right, owl standing right in right field. 

AMNG 265: May 40; Warren 461; SNG Cop 391.

With permission of CNG Triton XVI Sessions 1 & 2, Lot 251, Jan. 2013.
Very rare with this symbol.