Watch List notes:

Anonymous. 169-158 B.C. AE as (32.3 mm, 25.28 g, 4 h). Rome mint. Laureate and bearded head of Janus, I above / ROMA, Prow of galley right, star above, I right. Crawford 196/1; Sydenham 264. Fine, sandy patina. 

Ex RBW collection (not in previous sales).