Halicarnassos, Caria, 5th to 4th. c. BC. AR hemiobol, 7.5 mm, 0.50 gr.

Ram's head right.
Youthful, male head right (Apollo?), uncertain symbol in left field, A 
in right field, all within an incuse square.

SNG Turkey I, 996; SNG Cop. 39-41 (under Salamis, Cyprus; SNG 
von Aulock 7621 (under Cebren, Troas); Klein 496 (as uncertain.

With permission of Roland Müller. Added June 2013.

Note: This type from Cebren, Troas, have K or KE on the reverse.
The letter on this coin is clearly an A.