Watch List notes:

The Roman Empire

Probus, 276 – 282. Aureus 281, AV 6.33 g. Laureate, draped and cuirassed bust l., holding spear on l. shoulder. Rev. Probus standing l., in military dress, holding sceptre, between four captives. C 794. RIC 143. Calicó 4238.
Extremely rare. Several edge marks, possibly traces of mounting, otherwise very fine