Watch List notes:

EGYPT, Alexandria. Tranquillina. Augusta, AD 241-244. Potin Tetradrachm (23mm, 12.16 g, 11h). Dated RY 6 of Gordian III (AD 242/3). Draped bust right, wearing stephane / Draped bust right of Serapis, wearing calathus, scepter behind shoulder; L ς (date–retrograde) to right. Köln 2690 var. (placement of date); Dattari (Savio) 4834; K&G 73.27; Emmett 3457.6 (R5). Good VF, dark gray-brown surfaces with touches of light green on the reverse. Rare.

From the Hermanubis Collection.