Watch List notes:

Valerian II. Caesar, A.D. 253-255. BI antoninianus (23.2 mm, 2.75 g, 1 h). Cologne mint, struck A.D. 257-258. Scarce. VALERIANVS CAES, radiate and draped bust right / IOVI CRESCENTI, young Jupiter riding goat Amalthea right, head left, raising hands. RIC 3; RSC 26. Toned Fine, typical weak strike.