Watch List notes:

Nero augustus, 54 – 68. Dupondius circa 65, Æ 13.21 g. Radiate head r. Rev. View of the temple of Janus, closed door to r., decorated with garland. C 166 var. (obverse legend omits IMP). RIC 289.
Green patina, about extremely fine / good very fine

Ex Gorny & Mosch sale 114, 2002, 241.