Help Needed Identifying and Estimating Value - Old British Coin?

Walkerguy21D

Thanks in advance.....a friend of mine acquired this at a small shop while on vacation....supposedly salvaged from
a shipwreck. Not really sure if it's a regular issue British coin, or a token from a British colony, or a contemporary counterfeit (it
seems a bit thin, but that may be from salt water etching?).
Any help is much appreciated.

coachbedford

I would say an official British halfpenny of George III struck 1770-75,,,full date of yours is half off flannel (as many of these are) but appears to be 1772 or 1773

coindeuce

The latest edition of Krause 18th Century doesn't even post a value for KM-601 in this condition, but you can probably expect that it's worth under $5 U.S. It catalogs in Fine for $4.00.