Watch List notes:

ANCIENT COINS, PARTHIAN COINS, Local Imitations of Parthian issues, Silver Drachms (3), minted by petty Princes in Eastern Parthia, imitating Phraates IV (2), diademed bust with short and pointed beard left, eagle carrying wreath behind head, countermark engraved on die, showing a helmeted head right, dotted border, rev archer enthroned right, monogram Π under bow, fragmentary and unintelligible inscription, minted at Margiane(?) (S 91.15); and imitating Vardanes I, no countermark, diademed bust with short beard left, dotted border, rev archer enthroned right, A below bow, fragmentary and unintelligible inscription, minted at Areia(?) (S 91.14 var). Generally fine to good fine, rare. (3)
from The David Sellwood Collection of Parthian Coins

Estimate: £200-250