Watch List notes:

ANCIENT COINS, PARTHIAN COINS, Phraates III (70/69-58/7 BC), Silver Tetradrachm, minted at Seleucia on the Tigris, diademed and short bearded bust left, wearing spiral torque, dotted border, rev archer enthroned right, monograms BA and Z respectively above and below bow, seven line inscription ΒΑΣΙΛΕΩΣ ΜΕΓΑΛΟY ΑΡΣΑΚΟY ΦΙΛΟΠΑΤΟΡΟΣ ΕYΕΡΓΕΤΟY ΕΠΙΦΑΝΟYΣ ΦΙΛΕΛΛΗΝΟΣ, 14.54g, 12h (S 36.3 (Darius)). Good fine, very rare.
from The David Sellwood Collection of Parthian Coins

Estimate: £400-500