Watch List notes:

KINGS of MACEDON. Antigonos I Monophthalmos. As Strategos of Asia, 320-306/5 BC. AR Tetradrachm (25.5mm, 16.85 g, 12h). In the name and types of Alexander III. Sidon mint. Dated RY 21 of Abdalonymos (313/2 BC). Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; Φ (date) in left field, ΣI below throne. Price 3510; Newell, Dated 56 (obv. die XXIX); DCA 877. VF, toned.

From the collection of Dr. Will Gordon. Ex Classical Numismatic Group Electronic Auction 144 (26 July 2006), lot 76.