I think this is a 1770's Colonial counterfeit, probably Halfpenny, made by the colonies for the purpose of bolstering circulating money for commerce, (as I understand not technically "counterfeit", as it was not illegal in the New World... I see them called tokens).
Could be some kind of genuine British coin.... but the poor strike, porosity, and especially the thinness (yet not worn flat)... has me thinking it is a Colonial(1770's) Counterfeit (Token).
See the bottom of this web link to see similar
http://www.coins.nd.edu/ColCoin/Col...fBrit.2.html My copper is about 27 mm.
I make my case:
(1)I don't know the weight... but it is thinner and lighter than a barely recognizable WORN FLAT late 1800s genuine British copper... the thinness, yet not worn flat, is what got me thinking Colonial.
(2) I found it in an otherwise unremarkable bag of world coins... except there were 4 or 5 worn coppers that stuck out like sore thumbs... I threw them in a jar with other culls. BUT NOW... one of these turns out to be the civil war token (I posted here just a few days ago), Another of these "culls" turned out to be an 1820 Canadian Trade Token (will post it later).
(3) the web site link (above) finds similar.
Sorry to be so long winded. Thanks for reading. Shoot me down (OR BEAM ME UP!!).
P.S. [[[never throw away culls until you really look!]]]

