Watch List notes:

EGYPT. Alexandria. Antoninus Pius, 138-161. Drachm (Bronze, 32.00 mm, 22.56 g, 11 h), year IH = 18 = 154-155. AY TI AI ΑΔΡ ΑΝΤωΝΙ[ΝΟC ΕΥC CΕΒ] Laureate and draped bust of Antoninus Pius to right. Rev. L IH Tyche-Euthenia standing facing, her head to left, holding grain ears in her right hand and a rudder in her left; to left, forepart of a grain transport ship to right, below which, Thalassa reclining to right; to right, galley-stern, below which, Nilus reclining to left, crowned with lotus and holding a rudder with his right hand. Dattari (Savio) 8771-2. Geissen 1749. K&G 35.661. RPC IV.4 Online temp. 13846.35 (this coin, chosen to illustrate the series). With an iconographically complex reverse scene - depicting the all important grain exports to Rome - and a dark, greenish-brown patina. Very fine.
From the collection of Jean-Pierre Righetti, Ex Elsen 134, 9 September 2017, 516.