BAKTRIA, Greco-Baktrian Kingdom. Heliokles Dikaios. Circa 145-130 BC. AR Tetradrachm (32mm, 16.74 g, 12h). Diademed and draped bust right / Zeus standing facing, holding thunderbolt and scepter; monogram to inner left. Bopearachchi 1U; HGC 12, 169. Bright surfaces, some light porosity, area of weakness on reverse. EF.