Watch List notes:

Maxentius. Follis; Maxentius; 306-312 AD, Ostia, 309-10 AD, Follis, 6.87g. Drost-33b, pl. 49 (same dies); cf. RIC-37 (R3). Obv: IMP C MAXENTIVS P F AVG Heroic deep bare bust left seen from back holding shield and spear. Rx: AETE - RNITAS A - VG N Castor and Pollux, stars on their heads, standing with their horses. Ex Berk 128, 28 August 2002, lot 466. A very rare bust type, known to Drost in only three specimens, one of which is this coin.
($350)