Could be a Chain Cent or British Half pennies too ! What's so strange is I think Ohio was est. in 1803 .
It is a phrygian cap or Liberty Cap. It is a symbol of republican government and represents republicanism and anti-monarchial sentiment. The cap's last appearance on circulating U.S. coinage was the Walking Liberty Half Dollar.
Here an example of the Libertas Americana medal which inspired the Liberty Cap design. Oddly enough, the only the 1793 Half Cent faced left like it did on this medal. All of the Liberty Cap designs faced right.
Mingo is very close to the Ohio River in SE Ohio. Many early pioneers had to go through the area to go further west. Ohio was a state 10 years after the coin was minted. I agree very rare find, but early pioneers would have everything they owned in their possession.
Well my grandfathers farm was originally a coal mine dating back to the late 1700s heck the town of Smithfield Ohio was founded in 1799 and i did do some detecting before my grandfather passed away 11 years ago and I found all sorts of coins and artifacts
During the Roman Republic, freed slaves were required to wear a red conical cap. From contemporary depictions it looks much like that on the French, English and American coinage and medals of the 18th and 19th century.