Nero and Tiberius BI Tetradrachm of Alexandria, Egypt. Year 13, AD 66-67. Radiate bust of Nero left, L IΓ in left field / TIBEPIOΣ KAIΣAP, laureate head of Tiberius right. Emmett 134; Köln 187; Dattari 185; BMC 114-115; Milne 256-260. 11.82g, 25mm, 12h.