U.S. National Archives (Record Group 104, Entry 271, Daily Production by Mint 1873-1906), U.S. Mint Publique Deposited
Daily coinage production by Mint, covering the period 1873-1906. 5 volumes as follows:
Volume 1: 7/1/1875-6/30/1879
Volume 2: 7/1/1879-6/30/1883
Volume 3: 7/1/1883-6/30/1887
Volume 4: 7/1/887-6/30/1897
Volume 5: 7/1/1896-6/30/1906
See also the coinage figures in entry 272 (https://nnp.wustl.edu/library/archivedetail/524637).
The National Archives catalog record for entry 271 (as of 2/2018) is https://catalog.archives.gov/id/7065573. See also the National Archives & Records Administration numismatic finding aids at https://nnp.wustl.edu/library/archivedetail/538870.