I’m not sure what this is but I reckon it’s pretty old. It’s very thin. Could it be a british farthing? It’s about the same size as one.
Copper duit, aka "The New York Penny" - Colonial monetary unit in Dutch New Amsterdam (later New York) and for years later, long after Dutch rule had passed. It was part of the coinage used to purchase the island of Manhattan from the locals (wiki)
It appears to be vaguely round, and is probably made of some type of metal. That's about all I can tell you about this piece.
