Watch List notes:

Diadumenian (Caesar, 217-218). Æ As (25mm, 9.77g, 12h). Bare-headed, draped and cuirassed bust r. R/ Diadumenian standing l., holding standard and sceptre; on r., two standards. RIC IV 212 (Macrinus). Green patina, Good Fine
Estimate: 850 GBP