U.S. National Archives (Record Group 104, Entry 229, Letters Received 1873-1932)
The corresponding National Archives (NARA) online catalog entry is https://catalog.archives.gov/id/7065060. The material scanned here does not comprise the entire NARA entry.
See also the National Archives & Records Administration numismatic finding aids at https://nnp.wustl.edu/library/archivedetail/538870.
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1 entries found for [year:1874]
Scanning from National Archives & Records Administration, record group 104 (U.S. Mint), entry 229 (Letters Received 1873-1932), box 5, covering approximately 1874-1880. Courtesy of Roger W. Burdette.