Watch List notes:

EGYPT, Alexandria. Probus. AD 276-282. Potin Tetradrachm (19.5mm, 8.34 g, 12h). Dated RY 6 (AD 280/281). Laureate and cuirassed bust right, seen from the front / Eagle standing right, with spread wings, holding wreath in beak; L-ς (date) across fields. Köln 3149; Dattari (Savio) 5557; K&G 112.31; Emmett 3982.6. Brown patina. Near VF.

From the Rocky Mountain Collection of Alexandrian Coins, purchased from William Rosenblum.