Watch List notes:

ANCIENT COINS, PARTHIAN COINS, Mithradates I (164-132 BC), Silver Drachm, minted at Ecbatana, bare-headed, diademed and bearded bust right, rev archer seated right on omphalos, three line inscription ΒΑΣΙΛΕΩΣ ΜΕΓΑΛΟY ΑΡΣΑΚΟY, 3.65g, 7h (S 12.2 var (reel-and-pellet border on obverse)). Good fine, extremely rare.
from The David Sellwood Collection of Parthian Coins

Estimate: £200-250