Marcus Aurelius, AE sestertius, 22.28 g. Rome.

M AVREL ANTONINVS ARMENIACVS P M, laureate, draped and cuirassed bust right.
TR POT XIX IMP II COS III, Providentia standing left, holding wand and sceptre, globe at foot. S-C across fields. 

RIC 911; BM R.14544 (this coin).

Apparently unique with this bust type. 
A number of sellers mistake RIC 912 (laureate head only) 
for 911 and misattribute the coin.

Image courtesy of the British Museum.