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Macrinus, 217-218. Denarius (Silver, 19 mm, 3.00 g, 6 h), Rome, circa March-June 218. 

IMP C M OPEL SEV MACRINVS AVG Laureate, draped bust right. 
P M TR P II COS P P, Macrinus seated left on curule chair, holding globe and short sceptre.

RIC 27a; RSC 51