Watch List notes:

KINGS of MACEDON. Antigonos II Gonatas. 277/6-239 BC. AR Tetradrachm (29mm, 17.04 g, 11h). Amphipolis mint. Struck circa 246/5-229 BC. Head of Poseidon right, wearing wreath of marine plants / Apollo, testing bow in extended right hand, seated left on prow left; monogram below. Panagopoulou Period III, 251 (O40/R240); EHC 436 (Antigonos II); Touratsoglou 52–3 (Antigonos II); HGC 3, 1051 (Antigonos II). Pleasing old collection tone, light surface marks. In NGC encapsulation 5872733-068, graded XF, Strike: 5/5, Surface: 4/5.

From the Robert W. Bartlett Bequest Sold for the Benefit of the American Numismatic Society. Ex Superior (11 June 1986), lot 997.