Watch List notes:

EGYPT. Alexandria. Antoninus Pius, 138-161. Drachm (Bronze, 33.80 mm, 26.49 g, 12 h), year ΙΘ = 19 = 155-156. ΑYΤ Κ Τ ΑΔΡ - ΑΝΤωΝΙΝΟC CE - B EYC Laureate and draped bust of Antoninus Pius to right. Rev. L - I / Θ Draped bust of Serapis to right, wearing kalathos and taenia. Dattari (Savio) 2809. Geissen 1761 var. (bust of Pius to left). K&G 35.681. RPC IV.4 Online temp. 16237. Dark brownish-red patina. Some pitting, otherwise, good very fine.
From the collection of Jean-Pierre Righetti, bought privately in Geneva in 2013.