Baktria, King Antimachos (c. 185-170 BC), Tetradrachm, 16.0 gms., mint of Balkh, draped bust of Antimachos, wearing kausia, right, rev. Poseidon standing facing, holding palm branch and trident, legend in field, monogram to lower right (Mitchiner, Indo Greek, 124b), very fine or thereabouts, uneven toning