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COMMODUS, co-Augustus, Denarius

Commodus, as co-Augustus, AR Denarius, L COMMODVS AVG, 
laureate, draped and cuirassed bust of Commodus, facing 
right. / COS P P, Salus, personifying health, safety, and 
general welfare, seated left, holding a branch, with a snake 
at her feet. Struck 177-178 A.D., portraying Commodus, at 
about age 16, as co-Emperor, with a simplified obverse 
legend that emphasizes Commodus' new position as co-Emperor. 

RSC 67, RIC III (Marcus Aurelius) 655, BMC IV (Marcus Aurelius) 765, RCV 5635, (3.4 gm.).