Watch List notes:

Mithradates I (171-138), Drachm, Hekatompylos, c. 171-138 BC; AR (g 3,94; mm 21; h 12); Didemed bust l., wearing diadem and torque, Rv. ΒΑΣΙΛΕΩΣ / ΜΕΓΑΛΟΥ / ΑΡΣ - ΑΚΟY, king seated r., on omphalos. Sellwood 11.2.
Very rare. Old cabinet tone, about extremely fine.