Macedonian Kingdom. Alexander III, the Great, 336-323 BC. Silver Tetradrachm (16.65g). Mint of Byblos, late liftime or early posthumous. Head of Heracles facing right wearing lion's scalp. Reverse: Zeus seated, foreleg bent on throne holding eagle and scepter; monogram in left field. Price 1375; Muller 1375. Boldly struck in high relief. Attractive light toning adds to its appeal. NGC dates this lifetime - early posthumous; Price as late lifetime. Regardless a lovely coin of excellent fine style. NGC graded AU; Strike: 4/5, Surface: 3/5. Estimate Value $700 - 800