Antiochus I Soter AR Tetradrachm. Seleucia on the Tigris mint. ca. 281-261 BC. 28 mm, 16.9 g. 

Diademed head right 
BASILEWS ANTIOXOY, Apollo seated left on omphalos, examining arrow andresting hand on grounded bow.

AT monogram in outer left field, DSW monogram in outer right field. 

Houghton SC 379.3d; Newell 157; Hoover HGC type 128g.

With permission of Bertolami Fine Arts auction 109, Lot 143, May 2022.