Original operator and parts manual for the International Harvester No. 8 Tractor Plow with remote hydraulic lift. Includes detailed diagrams, adjustment instructions, lubrication guides, and a full numerical parts index. Original vintage instruction manual by International Harvester Company. 8 Tractor Plow with Farmall M Tractor and Hydraulic Lift-All system. Includes lubrication chart, hitch adjustment diagrams, and photographic illustrations. Contains full parts list with numerical index and component descriptions. Pages include sections on plow care, adjustment, operation, and maintenance. Published with safety advisory by National Safety Council. 67 pages in total with red covers, staple binding. Condition: Visible age-related wear with edge tears and creases, but fully legible and intact. Era: Mid-20th century agricultural machinery documentation (circa 1940s-1950s).