Macrinus, 217-218 AD. AR Denarius 

IMP C M OPEL SEV MACRINVS AVG, laureate and cuirassed bust with short beard right
PONTIF MAX TR P COS P P, Securitas standing left, holding sceptre and leaning on column. RIC IV 24.

Ref: RSC 62, RCVM 7347, RIC 24

Contributed by Peter Dearing, August 2009