Indo-Greek, Silver Tetradrachm, 16.41g, Antimachus I Theos, Obv: Diademed, draped bust of Antimachus right, wearing kausia, Rev: Poseidon standing facing, resting right hand on trident and holding palm branch in left, monogram low in inner right field (Bopearachchi Series 1A. SNG ANS 274-275). Struck on broad flan. Tiny pockmark on cheek, areas of light porosity, otherwise Nearly Mint State, extremely rare.