Box 3
Contains 11 Results:
Floatation dump sampling, 1917-1929
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Miscellaneous mine length and area records, 1944-46
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Drill reports and records, 1944-1946
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Miscellaneous mine, pump, and timber documents, 1945
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Ventilation report for U.S. Mine, 1945
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Electronical wiring records, 1945-1946
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Ventilation report for U.S. Mines, 1950
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Lark surface plant heating and ventilating systems, 1953
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Cooling system proposal, 1953
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.
Pumping data, 1953-1954
This series contains documents pertaining to operational systems within the mines such as cooling, ventilating and heating systems.