U.S. National Archives (Record Group 104, Entry UD-87, Papers and Correspondence, 1819 - 1979) Publique Deposited
Papers and Correspondence, 1819 - 1979. Related to branch Mints and assay offices.
National Archives catalog entry is https://catalog.archives.gov/id/3054033. See also the National Archives & Records Administration numismatic finding aids at https://nnp.wustl.edu/library/archivedetail/538870.
Roger W. Burdette description:
Two partial boxes of miscellaneous letters and charts, as follows:
Box 1. Folder 1, coiner and cashier pocket notebooks for a few weeks in 1901.
Folder 2, 1904 settlement pages for Phila. Mint.
Box 2. Folder 1, Transfer receipts between Denver Mint and several FRB. 20 pieces.
Folder 2, Charlotte Assay Office balances. 2 sheets.
Folder 3, New Orleans Mint. Letters with reasons not to reopen in 1873. 1873-1903. 10 documents.
Folder 4, San Francisco Mint 1882-1912. 6 documents; nothing important.
Folder 6, Carson Mint scattered daily reports. 5 documents.
Folder 9, Philadelphia Mint scattered letters that should be in Letters Received (E-229). 20 documents.