Macrinus, AR denarius. April-December 217 AD. 

IMP C M OPEL SEV MACRINVS AVG, laureate, cuirassed bust right with youthful features and short beard.
PONTIF MAX TR P PP, Securitas standing front, looking left, holding sceptre, legs crossed, left arm leaning on column.

TLA item 143578. RIC 4 ADD. Not in RIC, RSC, Cohen and Cohen 
additions. 

Should be added to the first RIC group, RIC IV-2, 2-4, before Macrinus became a consul. TLA item 143578

With permission of TimeLine Auctions 
(www.timelineauctions.com), June 2020