Watch List notes:

KINGS of PARTHIA. Arsakes XVI. Circa 78/7-62/1 BC. AR Tetradrachm (31mm, 14.11 g, 12h). Seleukeia on the Tigris mint. Diademed bust left / Archer (Arsakes I) seated right on throne, holding bow; monogram above bow. Sellwood 30.2 (Unknown king); Sunrise 311; Shore –. Toned, minor pitting, edge marks. Fine.

From the Bob (Robert) L. Collection. Ex Frank Robinson 96 (February 2016), lot 93.