Watch List notes:

The Roman Empire

Pacatianus, 248-249. Antoninianus, Viminacium circa 248-249, AR 3.70 g. Radiate, draped and cuirassed bust r. Rev. Pax standing l., holding branch and transverse sceptre. C 6. RIC 5.
Very rare. Unusually well-centred, light iridescent tone and very fine

Ex NAC sale 87, 2015, 328.