I just got this example that is pretty decent in style...a few issues, but what really sticks out to me is the poorly formed Chi-Rho, with a retrograde rho. Otherwise, a solid effort-- 9 out of 10
Constans
Circa A.D. 348-350
20x21mm 4.3g
DN CONSTA-NS P F AVG; pearl diademed, draped & cuirassed bust right.
FEL TEMP REPARATIO; Emperor in military dress stg. l., holding victory on globe and standard with Chi-Rho on banner; in stern sits Victory, steering ship.
In ex. TRS
Cf. RIC VIII Trier 219