Watch List notes:

EGYPT, Alexandria. Marcus Aurelius. As Caesar, AD 139-161. Æ Diobol (22mm, 6.97 g, 12h). Dated RY 12 of Antoninus Pius (AD 148/149). Bare head right / Head of Zeus Ammon right; [L] ∆ω∆Є KATO[V] (date) around. Köln –; Dattari (Savio) 9058; K&G –; RPC IV.4 Online 13649; Emmett 1910.12 (R5 = Dattari 9058). Green patina with touches of red, a few cleaning scratches, minor roughness. VF. Extremely rare, none in CoinArchives, and RPC IV.4 Online cites only seven specimens.

From the Rocky Mountain Collection of Alexandrian.