Watch List notes:

EGYPT, Alexandria. Salonina. Augusta, AD 254-268. Potin Tetradrachm (23mm, 12.29 g, 12h). Dated RY 4 of Valerian I and Gallienus (AD 256/257). Draped bust right, wearing stephane / Eagle standing left, head right, holding wreath in beak; L ∆ (date) across field. Köln 2957-8; Dattari (Savio) 5319; K&G 91.8; Emmett 3747.4; Kellner p. 132, pl. 14, Abb. 28 (this coin). Dark gray surfaces, some light porosity. Good VF. Nearly fully silvered.

Ex A.K. Collection (Triton XXIII, 14 January 2020), lot 835 (part of); purchased privately by A.K from Münzen und Medaillen AG, 1970.