Watch List notes:

EGYPT. Alexandria. Antoninus Pius, 138-161. Drachm (Bronze, 35.00 mm, 30.26 g, 12 h), year Δ = 4 = 140-141. [ΑYΤ Κ Τ Α]ΙΛ ΑΔΡ - ΑΝΤωΝΙΝΟC EYCEΒ Laureate head of Antoninus Pius to right. Rev. L Δ Draped bust of Serapis and Isis jugate to right, Serapis wearing kalathos and Isis wearing headdress. Dattari (Savio) 8716 var. (bust). Geissen -. K&G -. RPC IV.4 Online temp. 15520.3 (this coin). Red-brown and green patina. Has been strongly cleaned, otherwise, good very fine.
From the collection of Jean-Pierre Righetti, Ex Classical Numismatic Group e295, 30 January 2013, 337 (since cleaned of heavy deposits).