Claudius II AE Antoninianus, Antioch, 2.97 g.

IMP C CLAVDIVS AVG, Radiate, draped and cuirassed bust right.
REGI ARTIS, Vulcan standing right, holding hammer and pincers.

RIC 215.

This reverse is one of the rarest for Claudius II.
It can also have Z in the exergue.

Sold by VIA GmbH E-Auction 11, Lot 211, March 2023.