Numerian, 283-284, AE Antoninianus, 283-284 AD. Rome.

Obv: IMP NVMERIANVS AVG, Radiate, draped bust right
Rev: PIETAS AVGG, Mercury standing left, holding purse 
and caduceus

Mintmark KA Delta

RIC 416, rated common

Submitted by Antolin Zapirain, Feb. 2010.