Parthia, Unknown King (c.80-70 BC), Silver Tetradrachm, 15.7 gms., mint of Seleucia on the Tigris, diademed bust left, rev. /KBASILEOS MEGALOY ARSAKOY (TH)EOPATOROS EYERGETOY EPI(PH)ANOY (PH)ILELLHNOS/k in seven lines around archer seated right holding bow, monogram above (Sellwood 30/2), choice extremely fine, excellent metal, very rare in this condition