Watch List notes:

EGYPT. Alexandria. Antoninus Pius, 138-161. Drachm (Bronze, 33.2 mm, 20.61 g, 12 h), year 18 = 154-155. AY TI AI ΑΔΡ ΑΝΤΩΝΙΝΟC ΕΥC CΕΒ Laureate and draped bust of Antoninus Pius to right. Rev. L I-H Poseidon standing right, resting left foot on rock, holding trident in right hand and dolphin in left. Dattari (Savio) 8658-9. Geissen 1743. K&G 35.655. RPC IV.4 Online temp. 15224. Dark green patina. Light cleaning marks, otherwise, very fine.
From the collection of Jean-Pierre Righetti.