Cr. 106/6a Anonymous "staff and club" series Æ Triens, 209-208 B.C., Etrurian mint
Roman Republic Æ Triens(27mm, 11.61g, 9h), Anonymous("Staff and club" series), 209-208 BC, Etrurian mint. Helmeted head of Minerva right; above, •••• / Prow right; above, ROMA and staff; below, ••••. Crawford 106/6a; Sydenham -; Russo RBW 483.
Ex. RBW collection, Ex. Crédit Suisse List 52 (January 1988), 422
Crawford places this series at 209-208 B.C., which makes sense as Etruria was revolting at that time and Rome had to dispatch legions to take hostages and get the situation under control. This series(and a related series with no symbols) is often misattributed but you can always tell coins of this series by style as the obverse bust is always bug-eyed like this one.
Image copyright Agora Auctions.