Watch List notes:

EGYPT, Alexandria. Tranquillina. Augusta, AD 241-244. Potin Tetradrachm (23mm, 13.17 g, 1h). Dated RY 6 of Gordian III (AD 242/3). Diademed and draped bust right / Nike seated left, holding wreath and palm frond over shoulder; L ς (date) to lower left. Köln 2689; Dattari (Savio) 4831; K&G 73.22; RPC VII.2 Online 2694; Emmett 3453.6. Brown patina, lightly encrusted. VF.

From the Rocky Mountain Collection of Alexandrian Coins.