Antoninus Pius. ; Antoninus Pius; 138-161 AD. Egypt, Alexandria, Year 17 = 153/4 AD. Billon Tetradrachm, 13.92g. Dattari/Savio pl. 113, 2287; Oxford-2215; Emmett-1412/17 (R3); not in Cologne. Obv: ANTWNIN - O C C - EB EVCEB Bust laureate r., fold of cloak on front shoulder and behind neck. Rx: Bust of Nilus r. wearing diadem topped by lotus flower, in front cornucopia; in field date LI on l., Z high r. . aVF