Seller sold it as Postumus Antoninianus....("Bronze antoninianus")
Aureolus 388 [postumus] Aureolus, 267-268 AD, rebel in Milan, struck in the name of Postumus. AE Antoninianus. Milan mint. IMP POSTVM.., radiate, draped, cuirassed bust right / VIRTVS EQVIT, Virtus advancing right, holding spear and shield; T in exergue. RIC V 388; Mairat 224-5; AGK 111b; RSC 441(scarce)

