Nero (54-68).     BI Tetradrachm, Alexandria mint, Egypt. Dated RY 13 = 66-67 AD.   Obv.    Radiate bust of Nero left, wearing aegis; L IΓ (date) below chin.        Rev.   Galley sailing right; dolphins swimming below.     Dattari (Savio) 264; K&G 14.99; RPC I 5296; Emmett 121.13.     13.07 g.   23.5 mm.        Good example with pleasant tone and minor green deposits.    Good VF.