Record Group 104, Records of the New Orleans LA Branch Mint and Assay Office, 1840-1942. Ledger-Bullion Accounts-Form No. 285, July 30, 1910-June 29, 1920. National Archives ID 2579530, https://catalog.archives.gov/id/2579530.
The Philatelic West, published by L. T. Brodstone, Superior, NE. Organized by year. This copy courtesey of the Nebraska History Library (History Nebraska - formerly the Nebraska State Historical Society).
San Francisco life of dies. United States Mint die coinage records, gathered from the National Archives & Records Administration, courtesy of Roger W. Burdette.
Philadelphia, Denver dies received. United States Mint die coinage records, gathered from the National Archives & Records Administration, courtesy of Roger W. Burdette.
Philadelphia pieces struck from each die. United States Mint die coinage records, gathered from the National Archives & Records Administration, courtesy of Roger W. Burdette.
San Francisco cancelled dies received in Philadelphia. United States Mint die coinage records, gathered from the National Archives & Records Administration, courtesy of Roger W. Burdette.