RIC doesn't list this workshop, though several examples are known.
Constantine I
A.D. 318-9
18x20mm 3.2g
CONST-ANTINVS AVG; laureate helmet and cuirassed bust right.
ROMAE AETERNAE; Roma std. r., with stylus in r. hand, inscribing shield in lap with X/V; across fields P-R.
in ex. RS
RIC VII Rome 147
