Antoninus Pius (138-161). Egypt, Alexandria. Bi Tetradrachm

Antoninus Pius (138-161). Egypt, Alexandria. Bi Tetradrachm (23mm, 13.19g), Year 15 (ad 151/2). Laureate Bust R., With Slight Drapery. R/ Tyche Of Alexandria(?) Standing Facing, Head R., Turreted, Holding Rudder And Small Figure Of Hermes(?), Wearing Hem-