Watch List notes:

Mithradates I (171-138), Chalkos, Hekatompylos, c. 171-138 BC; AE (g 1,68; mm 15; h 12); Didemed bust l., wearing diadem and torque, Rv. ΒΑΣΙΛΕΩΣ / ΜΕΓΑΛΟΥ / ΑΡΣΑΚΟY, elephant walking r. Sellwood 11.7.
Rare. Dark patina, good extremely fine.