Bactria, Antimachus. Tetradrachm; Bactria, Antimachus; 171-160 AD. Tetradrachm, 16.91g. Bop-Series 1, 1-2. Obv: Diademed, draped bust of king r., wearing kausia. Rx: ??S???OS T?o? on r., ????????? on l., Poseidon standing facing, resting r. hand on trident and holding palm branch in lowered l. hand, ??F monogram low in inner r. field. Ex Frank Kovacs, Mail Bid Sale XIV, 1998, lot 88.Stunningly realistic portrait. Extremely sharp. Edge of helmet in unusual high relief. MS