BAKTRIA, Greco-Baktrian Kingdom. Heliokles Dikaios. Circa 145-130 BC. AR Tetradrachm (34mm, 16.83 g, 12h). Diademed and draped bust right / Zeus standing facing, holding thunderbolt and scepter; monogram to inner left. Bopearachchi 1Q; SNG ANS 641 HGC 12, 169. Lightly toned with underlying luster, minor roughness. VF.