MACEDON. Kingdom of Macedon. Alexander III (the Great), 336-323 B.C. AR Tetradrachm, Uncertain Mint in Greece or Macedon, ca. 310-275 B.C. NGC Ch VF. Pr-844. Obverse: Head of Herakles right, wearing lion skin; Reverse: Zeus seated left; no control marks. An unusual Tetradrachm without any markings on the reverse. Struck on a rather broad flan and displaying attractive silver surfaces with minor contact marks.