Also see the Alexander Hamilton Collection: The Story of the Revolution & Founding
On his 11th day as Secretary of the Treasury, Hamilton orders Customs Collectors to accept Bank of North America and Bank of New York notes as the equivalent of gold or silver, and hints at forthcoming procedures to guard against counterfeit currency.
“In consequence of arrangements lately taken with the Bank of North America, and the Bank of New York for the accommodation of the Government, I am to inform you that it is my desire that the Notes of those Banks payable either on demand, or at no longer period than Thirty days after their respective dates should be received in payment of the duties, as equivalent to Gold and Silver . . .”