Watch List notes:

KINGS of MACEDON. Antigonos II Gonatas. 277/6-239 BC. AR Tetradrachm (30.5mm, 16.40 g, 4h). Amphipolis mint. Struck circa 274/1-260/55 BC. Horned head of Pan left, lagobolon behind, in the center of a Macedonian shield / Athena Alkidemos, advancing left, shield decorated with aegis on left arm, preparing to cast thunderbolt; crested Macedonian helmet to inner left, monogram to inner right. TEA Period I, Group 7, 33 (O11/R33); HGC 3, 1042. Toned, trace deposits, a little porosity, light scratches in field on reverse. Near VF.

Ex John L. Cowan Collection (Classical Numismatic Group Electronic Auction 452, 18 September 2019), lot 171; Pegasi XXXIV (24 May 2016), lot 100.