Watch List notes:

Valerian I. AD 253-260. Antoninianus (21mm, 2.97 g, 12h). Rome mint. 1st issue, AD 253-254. IMP C P LIC VALERIANVS AVG, radiate, draped, and cuirassed bust right / IOVI CONSERVAT, Jupiter standing left, holding thunderbolt and sceptre. MIR 36, 24d; RIC V 92; Cunetio 443; Normanby –; Stevenage –; Chalfont –; Eauze –. VF, lightly toned, minor porosity. Extremely rare, only one specimen noted by MIR (in the KHM [Vienna]).

Bought from Baldwin's, 1988.

The spelling CONSERVAT on coins of this issue with this reverse type seems to be rare. CONSERVA and CONSERVATORI are the more common spellings.