Watch List notes:

Anonymous [Thunderbolt]. Ca. 206-195 B.C. AE as (34.8 mm, 32.88 g, 5 h). Rome mint. Laureate head of bearded Janus; I above / ROMA, prow of galley right; I above, thunderbolt to right. Crawford 119/3; Sydenham 248. Fine, brown patina, flan chip. Scarce. 

Ex RBW collection (not in previous sales).