BITHYNIA. Prusa ad Olympum. Nero, 54-68. Diassarion (Orichalcum, 20 mm, 7.00 g, 6 h), after 62. ΝΕΡΩΝ ΚΛΑΥΔΙΟΣ ΚΑΙΣΑΡ ΣΕΒΑΣΤΟΣ Radiate head of Nero to right. Rev. ΠΡΟΥ/ΣΑΕ/ΩΝ within wreath. RG 6. RPC I 2018. Rare and exceptionally well preserved for the issue. Flan fault on the obverse, otherwise, good very fine.