Message from the President of the United States, Communicating a Report from the Director of the Mint, showing the operations of that institution for the year 1841
U.S. Mint Annual Reports (1842)
Mint Director Robert M. Patterson's report for the year 1841.
Paul Hybert summary: "A report from mint director R.M. Patterson to President Taylor, who relayed it to Congress. The first silver from domestic mines is deposited at the mint, but the small supply of bullion deposits results in the four mint facilities producing only one third of the coins produced in Philadelphia alone in 1836."
A transcript is at: http://www.chicagocoinclub.org/lib/us/cis/27-2/s87.html.
From the Congressional serial set, 27th Congress, 2nd session, Senate document no. 87.