U.S. National Archives (Record Group 104, Entry NRF-28, New Orleans, Record of Department Letters Received, Oct. 2, 1897-May 31, 1911) Publique Deposited
National Archives description: 104NRF-28. RECORD OF DEPARTMENT LETTERS RECEIVED, OCT. 2, 1897?MAY 31, 1911. 1 VOL. (1 VOL-O), .22 cu. ft. Arranged chronologically. This series includes the date received, number, name, subject, and action taken. Some of the subject matter includes the acknowledgement of a deposit, returning of receipts, and coinage adjustments, etc. National Archives catalog ID 2579588.
See also the National Archives & Records Administration numismatic finding aids at https://nnp.wustl.edu/library/archivedetail/538870.