Watch List notes:

KINGS of MACEDON. Antigonos II Gonatas. 277/6-239 BC. AR Tetradrachm (31mm, 17.09 g, 10h). Amphipolis mint. Struck circa 274/1-260/55 BC. Horned head of Pan left, lagobolon over shoulder, in the center of a Macedonian shield / BAΣIΛEΩΣ ANTIΓONOY, Athena Alkidemos advancing left, shield decorated with aegis on left arm, preparing to cast thunderbolt held aloft in right hand; crested Macedonian helmet to inner left, monogram to inner right. Panagopoulou Period I, 28 var. (O12/R– [unlisted rev. die]); Touratsoglou 47–8; HGC 3, 1042; SNG Evelpidis 1427 (same obv. die). Toned, earthen deposits, patch of find patina at edge, die break on obverse. EF. Well centered on excellent metal.

From the Collection of a Northern California Gentleman, purchased from A. Kosoff, June 1967.