Probus, AV aureus, 22mm, 5.98 g. AD 276–282.

IMP C M AVR PROBVS PF AVG, Laureate, cuirassed bust left, 
wearing imperial mantle, holding eagle-tipped sceptre. 
HERCVLI ERYMANTHIO, Hercules standing right, carrying the 
Erymanthian boar over his shoulder. 

Calic̣ 4156 (this coin); Sear 11909 var (bust type): 
RIC 586 var; Cohen 272 var.

Extremely rare.
Ex Triton sale III, 1999, 1168.
With permission of Numismatica Ars Classica, May 2007.