Watch List notes:

France, Guido Poterius, called Guy Potier (b. 1619-?), philosopher and physician to the Kings of France and Poland, small bronze medal, Roman school, 1665, bust r., wearing cap, rev. crossed club and flaming torch, NVMINE VIRTVS 1665, on ribband, all within ouroboros, 40.5mm. (V-T, Bargello 1172; Brett. 897; Maz. CXVIII, I, II; H- Cz. 5403), very fine
(65-85 GBP)