Demetrios I Soter. Seleukid Kingdom. 162-150 BC. AR Tetradrachm, 27 mm, 16.70 g. Susa mint. 

Diademed head right.
Apollo seated left on omphalos, examining an arrow and 
resting hand on bow.
PT monogram in left field, Delta or A in exergue.

SNG Spaer 1366; SC 1711.3; Le Rider, Suse, pl. VI, C (same dies); Hoover HGC 790c. 

With permission of cngcoins.com, auction 111, Lot 338, May 2019.