Engineering Release Notes, Muffler Inlet Pipe Clamp, Ford Model A, 1927-1931

The Ford Motor Company created over a million parts drawings from 1903 to 1957. Many of these drawings specify engineering requirements for the components of Ford-made vehicles--including automobiles, trucks, tractors, military vehicles, and Tri-motor airplanes. Others provided information about assembly components, stages of casting and forging, or experimental designs. Beginning in the 1940s, Ford transferred the drawings and associated documents to microfilm.