Watch List notes:

KINGS of MACEDON. Antigonos I Monophthalmos. As Strategos of Asia, 320-306/5 BC, or king, 306/5-301 BC. AR Tetradrachm (25.5mm, 15.94 g, 10h). In the name and types of Alexander III. Magnesia on the Maeander mint. Struck circa 318-301 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; A-in-wreath in left field. Price 1974. Near VF, toned, some roughness and porosity. Very rare, three noted by Price, one additional in Pella, none in CoinArchives.

From the Colin E. Pitchfork Collection. Ex G. Hirsch 223 (26 September 2002), lot 1592.