Trajan. Tetradrachm; Trajan; 98-117 AD, Alexandria, Egypt, Dated RY 20, 116-117 AD, Tetradrachm, 13.14g. Emmett-391, Dattari-, RPC-4891 (10 spec.). Obv: Radiate bust of emperor r., with aegis; star before. Rx: Draped bust of Sarapis r., wearing taenia and ornate calathus; LI T (date) across field.. VF