Baldwin's Auctions, Spring Argentum Auction 2013, Los 10 ANCIENT COINS. K ingdom of Parthia, Vologases IV (c. AD 149-191), Silver Drachm, Ekbatana mint, bust left, wearing diademed tiara, rev archer enthroned right, holding bow, monogram below, 3.80g, 12h (Sellwood 84.132; Sunrise 452 var); Vologases VI (AD 207-222), Silver Drachm, Ekbatana mint, bust left, wearing tiara, rev archer enthroned right, h...