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Balbinus, AR denarius, (2.92g) Rome Mint, 

IMP C D CAEL BALBINVS AVG, laureate, draped and cuirassed bust right.
PROVIDENTIA DEORVM, Providentia standing left, holding cornucopiae and a rod, pointing at a globe at her feet. 

RIC 7; RSC 23; BMCRE 33; Sear 8490.