Watch List notes:

Constantine I, 307/10-337. Follis (Bronze, 18.5 mm, 3.28 g, 12 h), Siscia, B = 2nd officina, 326-327. CONSTAN-TINVS AVG Laureate head of Constantine I to right. Rev. PROVIDEN-TIAE AVGG / ·BSIS· Camp gate with two turrets and no doors; above, star. RIC 200. Sharply struck and pleasing. Extremely fine.

From the Berliner collection, formed between 1970s and early 2000s.