Watch List notes:

EGYPT, Alexandria. Julia Mamaea. Augusta, AD 222-235. Potin Tetradrachm (23mm, 13.27 g, 12h). Dated RY 12 of Severus Alexander (AD 232/233). Draped bust right, wearing stephane / Zeus, holding patera and scepter, reclining left on eagle standing facing, head right, with wings displayed; palm frond to lower left, L IB (date) to upper left. Köln –; Dattari (Savio) 4533; K&G 64.103; Emmett 3236.12 (R5). Dark brown surfaces with traces of verdigris in the devices, obverse die shift. Good VF. Rare type for this regnal year.

From the Stein A. Evensen Collection, purchased from Nilus Coins, December 2009.