BAKTRIA, Euthydemos II, c.190-171 BC, Copper-Nickel 22 mm, Apollo head r/tripod, S7540 ( £350 ); VF, centered, surfaces partly smoothed but still very porous; distinct bright silvery-nickel color with sl coppery tinge on obv. Rare; the world's first nickel coinage! (A VF/F with moderate porosity brought $311 on $625 bid in my 1/00 sale.)