Watch List notes:

Constantine I. AE 3, Reduced Follis; Constantine I; 307-337 AD, Rome, 318-9 AD, Reduced Follis, 2.88g. RIC-147, officina Q=4 (r5), C-470 (2 Fr.). Obv: CONST - ANTINVS AVG Bust r. wearing cuirass and crested, laureate helmet. Rx: ROMAE - AETERNAE Roma seated r. on shield inscribing X / V on shield that rests on her knee, P - R in field, R Q in exergue. Scarce and interesting type struck at the mint of Rome only, referring to vows for Constantine's safe completion of fifteen years of rule. Rare from officina 4 with laureate helmet on obverse: only one specimen, in Vienna, known to RIC in 1966.. VF