Watch List notes:

KINGS of MACEDON. Demetrios I Poliorketes. 306-283 BC. AR Tetradrachm (28mm, 17.18 g, 2h). Amphipolis mint. Struck circa 289-288 BC. Diademed and horned head right / Poseidon Pelagaios standing left, foot on rock, holding trident; monograms to inner left and right. Newell 116; HGC 3, 1014b. Lightly toned, a few minor marks. In NGC encapsulation 5872733-068, graded Ch 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 988.