Nero and Poppaea Billon Tetradrachm of Alexandria. Year 10 = AD 63-64. 13.15 g.

NERW KLAY KAIS SEB GER AY, radiate head right.
POPPIA SEBASTH, draped bust of Poppaea right, 

Date LI to right. 

Köln 157, Dattari 196, BMC 122-123, RPC 5275.