Watch List notes:

The Roman Empire
Macrinus, 217 – 218

As 218, Æ 10.83 g. IMP CAES M OPEL SEV MACRINVS AVG Laureate and cuirassed bust r. Rev. PONTIF MAX TR P – II S – C Macrinus in quadriga l., holding sceptre and branch, crowned by Victory who stands behind him; in exergue, COS II P P. C 107. BMC 134. RIC 162. Bernhart pl. 54, 170 (this coin). Very rare. Green patina somewhat smoothed, otherwise about extremely fine

Ex Ars Classica sale XI, 1912, Levis, 770.
Illustrated in Max Bernhart (director of the Munich Royal coin collection), 1940, Macrinus n. 170, pl. 55.
Long bearded late portrait type of Macrinus. AMP.