Abstract: Operator's, parts, and service manuals for machinery produced by the International Harvester Company and its predecessor companies. Included are manuals for farm implements, tractors, trucks, engines, construction equipment, refrigerators, air conditioners, and other products produced for domestic and foreign markets. Operator's manuals may include set-up instructions, operating instructions, and parts lists. Parts manuals, or catalogs, usually include lists of parts used over several years on many different models, as well as non-dimensional drawings of parts and assemblies. Service manuals include overhaul, maintenance, and/or repair instructions. The series includes relatively few service manuals, and is most complete for manuals produced before 1960. Additions include some advertising literature and copies of service bulletins for International trucks, including “Shop Talks” and “Service Section Letters.”