Watch List notes:

ANCIENT COINS, PARTHIAN COINS, Mithradates II (121-91 BC), Silver Obol, minted at Ecbatana(?), diademed and long bearded bust left, spiral torque, dotted border, rev archer seated right on omphalos, four/five-line fragmentary and unintelligible inscription (S 26 var / 27 var); Mithradates III (87-80 BC), Silver Diobol, minted at Ecbatana(?), diademed and medium bearded bust left in tiara, decorated with a star on side, spiral torque, dotted border, rev archer enthroned right, five line inscription ΒΑΣΙΛΕΩΣ ΜΕΓΑΛΟY ΑΡΣΑΚΟY AYTOKPATOPOΣ(?) ΦΙΛOΠATOPOΣ(?), mostly illegible (S 31 var (Orodes I)). Fine to good fine, extremely rare. (2)
from The David Sellwood Collection of Parthian Coins

Estimate: £150-200