Summary: coin, Antoninianus of Claudius II (copy). O: Radiate bust R, [DIVO] CLAVDIO; R: Altar with flames above, front divided into four sections with dot in each section, [CONSEC]RATIO
Identification note: Claudius (AD 268-70) was a very popular emperor, who defeated tribes of Alamanni and Goths before dying of the plague. He was deified after his death and many coins were struck in his honour, probably by the emperor Aurelian. These coins are quite uncommon in Britain.
Identification note: layer 2