Antoninus Pius. Drachm; Antoninus Pius; 138-161 AD, Alexandria, Egypt, Hermopolite Nome, Year 8 = 144/145 AD, Drachm, 21.29g. Emmett-1830, Dattari-6272, RPC-. Obv: Head of Pius r. Rx: Thoth standing l., holding ibis and caduceus. Extremely rare. R4 in Emmett, only one recent example sold (two appearances); apparently missing in RPC online.. VG