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Tube 277

 Container

Contains 1 Result:

General equipment and structures, 1937-1957

 File — Tube: 277
Identifier: XI
Scope and Contents
  1. Mine cars schematic drawings (1937, 1941, 1944)
  2. Wheelabrator assembly 9” rotary valve (1957)
  3. General electrical schematics
  4. 20 cubic feet mine side dump car, chassis and miscellaneous details (1942)
  5. End dump mine car, assembly and details (1944)
Dates: 1937-1957