Watch List notes:

Marcus Aurelius, as Caesar, Æ Diobol of Alexandria, Egypt. Dated RY 12 of Pius = AD 148/9. Μ ΑVΡΗΛΙϹ ΚΑΙϹΑΡ, bare head right / Bust of Zeus-Ammon right, crowned with disk; L ΔⲰΔЄΚΑΤΟV (date) around. RPC Online 13649 (temporary); Dattari (Savio) 9058; Emmett 1910. 8.03g, 25mm, 12h.

Good Very Fine. Very Rare; RPC Online cites only seven examples and no others on CoinArchives.

From the inventory of a UK dealer.