Egypt. Alexandria. Commodus, 177-192. Tetradrachm (Billon, 22.70 mm, 11.12 g) dated RY 24 (= 183-184) [Μ Α ΚΟΜ ΑΝΤω ϹЄΒ ЄΥ]ϹЄΒ, Laureate head of Commodus right. Rev. The emperor in priestly dress standing left, dropping incense on lighted altar or thymiaterion, face to face with bust of Serapis to left, facing right to him, wearing kalathos and set on column, date: L (in exergue) K (to left) Δ to right. RPC IV.4, 3432. Dattari-Savio pl. 207, 3846 and 3847, rev. (= Dattari-Savio 3848). Dattari-Savio 9552 and pl. 210, 9604-5. Geissen 2212-3. Milne 2655. Emmett 2529.24. Vogt II, 108. An irregular edge, otherwise, About Very Fine. From the Giovanni Maria Staffieri Collection; ex London Coin Galleries, auction 4, 01.06.2017, lot 726; ex Naville Numismatics Ltd. 42, 22.07.2018, lot 275. Commentary by GMS: On the reverse of this tetradrachm of Commodus from the year 24 (183-184 AD) we see the emperor on the right sacrificing, facing left, on a lit altar in front of a column surmounted by a bust of Zeus Serapis with kalathos.