Dated Roman Egypt billon tetradrachm, 13.48g, silvered, Emmett 1383/10.
Minted in the 10th (spelled out in Greek, L DEKATOV) Alexandrian year for Antoninus Pius which corresponds to A.D. 146/7.
Certified by NGC to VF.
Reverse Elpis standing left holding apple and lifting skirt. Elpis is the Greek personification and Goddess of Happiness. In Roman mythology her equivalent was Felicitas.