Rare Aurelian billon denarius due to the denomination as well as the mintmark R.
Roman Imperial
Aurelian (270-275), Billon denarius 270-275, Rome mint
Obverse: laureate and cuirassed bust right
IMP AVRELIANVS AVG
Reverse: Victory walking left, holding wreath and palm, captive at foot, R in exergue
VICTORIA AVG
Weight 2,00 g.