Watch List notes:

PTOLEMAIC KINGS of EGYPT. Ptolemy I Soter. 305/4-282 BC. AR Tetradrachm (27.5mm, 13.92 g, 12h). Alexandreia mint. Struck circa 294-282 BC. Diademed head right, wearing aegis, small Δ behind ear / Eagle standing left on thunderbolt; to left, P above monogram. CPE 157; Svoronos 253; SNG Copenhagen 69. Iridescent toning, graffiti in fields, banker's mark on obverse. VF.

Ex WCM Collection of Ptolemaic Coinage; M&R Coins FPL 223 (1998), no. 2428.