Unknown Roman Coin #20 [solved]

Hello all, 

I have a Roman coin that I think is under the reign of Constantine based on the design. I think this is also Cyzizus which is based off the CYR mint on the reverse. 

Hope to hear what this is!

Yes, Constantine I, reverse VICTORIAE LAETAE PRINC PERP.

The mintmark is another story, difficult to read.

Giobruno

Yes, Constantine I, reverse VICTORIAE LAETAE PRINC PERP.

 

The mintmark is another story, difficult to read.

Turned out to be from Treveri, 319 AD.