Roman republic bronzes are not really my interest. But, this coin caught my eye. The strike/detail is impressive to me. Now for the tough part. I have tried to match it to online sales so that I can figure out an ID and value. Here are the notes from the tags and online sources. They may or may not be correct. I’d love to hear anyone’s thoughts on correct ID, value, etc. Post reform Sextans (Semiuncia?)? 217-215 BC? 6.4 grams 20-21 MM Crawford 38/7? Sydenham 87? BMCRR 129? 133?
Can´t see any sales on AC Search but this is the closest to an attribution I can find https://rucore.libraries.rutgers.edu/rutgers-lib/53076/
It is a Crawford 38/7 or a group AA semuncia in McCabe's grouping scheme from this paper but Crawford 38/7 is what you will see cited in most auctions. I would call it semilibral as opposed to "post reform" as that is the group it more properly belongs to. Here's mine Roman republic Æ Semuncia(5.50g), anonymous semilibral series. 217-215 BC. Head of Mercury right, wearing winged petasos / Prow right; ROMA above. Crawford 38/7; McCabe group AA; Sydenham 87; Russo RBW 100-102. It's one of the most common Roman Republic bronzes of them all but it is really hard to find a really high grade example as most have issues with corrosion, flaky patinas, etc.