Greco Bactrians, Heliokles I, Silver Tetradrachm, 16.53g, Obv: Diademed bust of king facing right, bead and reel border around partly visible, Rev: Frontally standing Zeus, holding thunderbolt in right hand, spear in left, monogram below the thunderbolt, Greek legend “BASILEOS DIKAIOU HELIOKLEOUS” around (BN series 1). Very fine+, extremely rare.