URBS ROMA - VOT XX Rare (F23102)

Commemorative Series, 330-354. (Bronze, 13 mm, 1.85 gr), Heraclea? 347-348. VRBS ROMA Helmeted and draped bust of Roma to left. Rev. VOT /XX /MVLT /XXX /  in four lines within wreath. cf RIC 56.  Very fine.

Considered by some to be a mule or coin mistakenly combining obverse and reverse types from different issues. this rare type is actually an official issue struck while the mint was under the joint jurisdiction of Constans and Constantius II.