Spinning Levers, A 1936 Educational Film Explaining How Vehicles With Manual Transmissions Work

“Spinning Levers” is a vintage educational film, produced by Jam Handy back in 1936 for Chevrolet, that explains how vehicles with manual transmissions work.

The transmission in the modern motorcar — the mechanism that makes it possible to have three forward speeds and a reverse — is a series of levers, levers that spin.