Macedon, Tragilos. 450-400 AD. AR, Silver Hemiobol. 

Grain ear 
T-P I-A in the four quarters of a quadripartite incuse square.

SNG ANS 903; AMNG pl. XXIV, 32; SNG Copenhagen 446. 

With permission of Jencek Ancient Coins, jhecoins.com, April 2013.