Watch List notes:

EGYPT. Alexandria. Antoninus Pius, 138-161. Drachm (Bronze, 37.00 mm, 23.13 g, 12 h), year KB = 22 = 158-159. ΑYΤ Κ ΑΙ ΑΔΡ - ΑΝΤωΝΙΝΟC - CEΒ - EY Laureate bust of Antoninus Pius to right, slight drapery on far shoulder. Rev. L / K-B Draped bust of Alexandria to right, wearing elephant's skin headdress. Dattari (Savio) 2454 var. (arrangement of date). Geissen 1824. K&G 35.790. RPC IV.4 Online temp. 15816.10 (this coin). Dark brown surfaces. Traces of cleaning, otherwise, good very fine.
From the collection of Jean-Pierre Righetti, Ex Classical Numismatic Group E403, 9 August 2017, 411 (since cleaned).