Very rare AE4 of the usurper Johannes, very sporadically appearing in the market and desired regardless of the state of preservation.
Roman Imperial
Johannes (364-375), AE4, Roma mint
Obverse: pearl diademed, draped, and cuirassed bust right
D N IOHANNES P F AVG
Reverse: Victory advancing left, holding trophy over shoulder and dragging captive, christogram in left field
SALVS REIPVBLICE
Weight 1.5 g