How to Dial a Phone, circa 1930s
For all you whippersnappers out there who never had the experience, here's a video primer on how to use a rotary dial telephone. Produced by Big Brother ... I mean, the telephone company ... in the 1930s, the film explained the dial tone and busy signal to consumers used to having the operator connect their calls. From the Retro Futurism post at io9.com.