Denver Mint records scanned at the National Archives (NARA) in Denver - covering the period 1947 - 1972. Record group 104.  Information resource name and date range: “Description & Inventory of Supplies, Equipment, etc., 1947 - 1972.”  Courtesy of John Graffeo.  

NARA description: This series consists of descriptions and inventories of supplies and equipment that were used by the U.S. Mint, Denver. The records include inventories of both office supplies and for supplies and equipment used in the refinery, and in coin minting operations.

NARA catalog entry: https://catalog.archives.gov/id/2675008.

Denver Mint records scanned at the National Archives (NARA) in Denver - covering the period 1947 - 1971. Record group 104.  Information resource name and date range: “Record Books of Heat, Water, Gas, and Fuel Costs, 1947 - 1971.”  Courtesy of John Graffeo.  

NARA description: This series consists of ledgers of heat, water, gas and fuel expenditures. This series contains accounting ledgers that detail the costs of the U.S. Mint, Denver's power and fuel consumption, and the costs involved.

NARA catalog entry: https://catalog.archives.gov/id/2674981.