Unique Variant?

406, Lot: 762. Estimate $75. Sold for $260. This amount does not include the buyer’s fee.

Claudius II Gothicus. AD 268-270. Antoninianus (22mm, 3.59 g, 12h). Smyrna mint, 1st officina. 1st emission, Phase 2, circa late AD 268-early AD 269. Laureate, draped, and cuirassed bust right; • below / Victory advancing left, holding diadem above a shield resting on base; –/–//SPQR. Normanby –; RIC V –; RIC Online 843 (this coin). VF, underlying silvering, cleaning scratches. Extremely rare type and possibly unique with this officina mark. The sole example currently cited by RIC Online.