Macrinus (217-218). AR Denarius. Obv. IMP C M OPEL SEV MACRINVS AVG. Laureate and cuirassed bust right. Rev. SALVS PVBLICA. Salus seated left, on chair with high back, feeding snake coiled round altar and placing her right hand on head of snake. RIC 84. C. 114. AR. g. 3.63 mm. 19.50 About EF.