Google says: Sounds like a British coin but also like a token? Someone will pick this up from here probably.
IMO this token looks to be a cast counterfeit of Baker 14 (also Garrett 1743, D & H Middlesex 242, Rulau-E Non 15, WA. FA. 1789.1). The coloration of the token suggests a base metal that had been copper washed, but which now has a considerable amount of the base metal showing. There are very noticeable differences between the devices of the OP's token and that of the photo in my reference. If this token were real, and not discounting for damage, it would be worth in the $100 ballpark. The original dies were cut by George Lovett of New York City, and Alfred S. Robinson of Hartford, Conn. struck the originals in 1863.