CARINUS, as Caesar. 282-283 AD. Antoninianus (4.09 gm). 
Lyons mint. 

CARINVS NOBIL CAES, radiate, draped and cuirassed bust right.

PRINCIPI IVVENTVT, Carinus standing right, holding globe in 
right hand, sceptre in left

Retrograde C in left field. 

RIC V pt. 2, 150

Sold on ebay in March 2010 by French seller Philippe Lacoste.