Carausius.
Romano-British Emperor, AD 286-293. Antoninianus (24.5mm, 3.51 g, 6h). Uncertain mint. Radiate, draped, and cuirassed bust right / Pax standing left, holding olive branch and scepter; S C across field. RIC V 476. EF, some silvering, toned, traces of deposits.
From the Korwin Collection, purchased from Martina Dieterle.
Description