Scope and Contents note From the Sub-Series: Materials, supplies, and equipment catalogs, 1919-1954, general maintenance manuals, 1923-1956, and railroad specific maintenance manuals, 1921-1954. Materials and supplies catalogs include a 1919 car parts, supplies, and equipment catalog, and the catalog of Material and Supplies or Sectional Catalog, 1923-1945, containing individually updated sections on brakes, car cleaning, light and electrical, body frame, glass, heating system, air conditioning, paints, platforms and vestibules, truck...