Yes there is a just the tiniest chance it could be real. There are no records of how many type I 1804 were struck, and there are definitely no records of how many clandestine Type II and II 1804 dollars were made. For almost a hundred years everyone was sure all the 1804 dollars were known, until the King of Siam set turned up in 1962. There are contemporary stories about how at least one Type II dollar was sent overseas before the Mint rounded them up. If that is true, it has never resurfaced.