Troezen, Argolis. Late 4th. Century BC. AE Chalkous 1.98 gm. 

Helmeted head of Athena left.
TROZ, Ornate trident head. 

BCD 1338. 
Very Rare with head left. 
Ex. BCD collection. 

With permission of Pegasi Numismatics, sale 33, lot 98, Aug. 2014.