Watch List notes:

Probus. A.D. 276-282. AE antoninianus (22.4 mm, 3.61 g, 6 h). Cyzicus mint, struck A.D. 281. IMP C M AVR PROBVS PF AVG, radiate bust left in imperial mantle, holding eagle-tipped scepter / SOLI INVICTO, Sol driving facing quadriga, head left, holding whip and raising hand; CM//XXIQ in exergue. RIC 911. gVF. 

Ex Elwood Rafn collection.