Watch List notes:

Anonymous. AE As. Exceptionally light, uncertain South Italy mint, c. 88-86 BC (?). Obv. Head of Janus; above, horizontally set mark of value I. Rev. Prow right; above, I; below, ROMA. Cr.-. AE. g. 1.84 mm. 17.50 RR. Very rare and interesting. Green patina. VF.