Watch List notes:

KINGS OF MACEDON. Demetrios I Poliorketes, 306-283 BC. Tetradrachm (Silver, 28 mm, 17.24 g, 3 h), Pella, c. 289-288. Diademed head of Demetrios to right, with bull's horn above his forehead. Rev. ΒΑΣΙΛΕΩΣ ΔΗΜΗΤΡΙΟΥ Poseidon, nude, standing to left, his right foot on a rock, holding a trident with his left hand and resting his right on his right thigh; in outer field to left, monogram of ΚPE; in outer field to right, Z. Newell 91 (obverse die LXXXII). Well struck and nicely toned. About extremely fine.
From the collection of a Swiss ecclesiastical exorcist, now retired, who acquired it prior to 2009.