Watch List notes:

EGYPT, Alexandria. Gallienus. AD 253-268. Potin Tetradrachm (21.5mm, 11.26 g, 12h). Dated RY 3 (AD 255/256). Laureate, draped, and cuirassed bust right / Eagle standing left, wings spread and head right, holding wreath in beak: L Γ (date) across field. Köln 2884; Dattari (Savio) 5224 (this coin); K&G 90.13; Emmett 3730.3; Kellner p. 131, pl. 14, Abb. 22 (this coin). Dark gray-brown surfaces, a few small pits. Good VF. Traces of silvering.

Ex A.K. Collection (Triton XXIII, 14 January 2020), lot 835 (part of); purchased privately by A.K from Münzen und Medaillen AG, 1981; Giovanni Dattari Collection, no. 5224.