Watch List notes:

Constantine I, 307/310-337. Follis (Bronze, 18 mm, 3.34 g, 11 h), Rome, 3rd officina (T), 318-319. CONSTA-NTINVS AVG Helmeted and cuirassed bust of Constantine I to right. Rev. ROMAE AETERNAE / P-R/RT Rome seated right on small round shield, inscribing shield held on known X/V. Cf. RIC 151 (officina T not attested). Unpublished variety in the RIC. Light porosity, otherwise, about extremely fine.