this one has some rough surfaces, but it is fairly rare...and you know, it would be in great shape except for its condition.

Constantine I
AD 307- 308
26x27mm 5.6g
IMP C CONSTANTINVS P F AVG; laureate, draped and cuirassed bust right, seen from rear.
VIRT PERP CONSTANTINI AVG; Virtus, holding Victory on globe, spear and shield; captive seated left.
In ex. PLC
RIC VI Lugdunum 285