Egypt. Alexandria. Nero, 54-68. Tetradrachm (Billon, 25.55 mm, 13.17 g). Dated RY 5 (= 58/59). ΝΕΡΩΝ [ΚΛΑΥ ΚΑΙΣ] ΣΕΒΑ ΓΕΡ ΑΥ[ΤΟ] Laureate head right. Rev. Eirene standing right, holding caduceus and helmet; IPH NH in left field; L E (date) in right field. Vogt I, pp. 26 and following. Vogt II, p. 8. BMC 2690. Dattari 230 (this coin). Geissen 129. RPC I, 5246. Emmett 119. Savio, Adriano, Tetradrammi Alessandrini; Milano 2007, pp. 51-56. Very Fine. Ex Giovanni Dattari collection 230. Ex Naville Numismatics 40, 27 May 2018, lot 357. A fine youthful portrait of Nero with Irene on reverse, the Greek deity - incorporated in Roman Egyptian theology - protector (helmet) and messenger (caduceus) of Peace. A specimen of illustrious provenance and great rarity (Emmett 4).