1937 film produced by the US Auto Industry about the importance of lubrication. Motorists really ride on a film of oil, because all the moving parts of the engine are kept slipping over each other by a thin film of oil.
This advertisement for the American Dairy Association was produced by Jam Handy for Sheffield Milk. It extols the virtues and benefits of drinking milk to be strong and energetic. It is quite entertaining.
Tongue-in-cheek film showing a domestic robot freeing housewives of their chores (and intimating that their work is hardly necessary); actually a promo showing how relays and switches function in the modern automobile. Shown at the New York World's Fair in 1940.