Antoninus Pius (138-161). Egypt, Alexandria. Æ Drachm (34mm, 24.22g), Year 19 (ad 155/6). Laureate And Draped Bust R. R/ Draped Bust Of Serapis R., Wearing Kalathos. Rpc IV.4 1791; Dattari (savio) 2409 Pl. 144 (this Coin). Vf From The Dattari Collection