U.S. National Archives (Record Group 104, Entry 1, General Correspondence)
La description:
Philadelphia Mint records scanned at the National Archives (NARA) in Philadelphia - covering the period November, 1857 - December, 1857, and January, 1858. General Correspondence from Entry 1, Box 49 of Record Group 104. Courtesy of John Graffeo.
Edward N. Kent of the United States Assay Office at New York thanks James Curtis Booth (1810-1888) for sending the description of improvements made to furnace doors.
