Ford Model T Chassis Being Lined up outside the Highland Park Plant, circa 1913

Ford Motor Company's Highland Park Plant hummed with activity during the 1910s. With the introduction of the moving assembly line, the plant went from building some 200,000 Model Ts in 1913 to more than 820,000 in 1919. Here workers are seen lining up chassis outside the plant for a publicity photo. The final shot showed 1,000 chassis -- one shift's production in 1913.