Watch List notes:

KINGS OF PARTHIA. Mithradates II, 121-91 BC. Drachm (Silver, 20 mm, 4.15 g, 12 h), Ecbatana, c. 99/98-91 BC. Bust of Mithradates with long beard to left, wearing diademed tiara with ties behind head, beaded ear flap and neck guard; V-necked jacked with beaded lapels, shoulder decoration with beads and lines, hoop earring, multiple torque rings terminating in pellet. Rev. ΒΑΣΙΛΕΩΣ ΒΑΣΙΛΕΩΝ ΜΕΓAΛΟΥ ΑΡΣΑΚΟΥ ΕΠΙΦΑΝΟΥΣ Archer (Arsakes I) seated right on high-backed throne, holding bow in one hand; footstool beneath feet. SNP 791-796 (Phase IV). Sellwood 28.5. Virtually as struck.
From a North American collection.

Mithradates II's tiara is decorated with a central star, three rows of beads with stylized moon crescents between 1st and 2nd rows.