Macrinus, AR denarius.

IMP C M OPEL SEV MACRINVS AVG, laureate and cuirassed
bust right, older bust with long beard.
SALVS PVB-LICA, Salus seated left on chair with no back,
feeding serpent arising from altar, from patera and holding 
sceptre.
RIC 89 var (backless chair type is listed for young bust only), RSC 116. 

Re-used with permission of Fritz Rudolf Künker GmbH & Co. KG, October 2001.