Information at Turn of Dial (Jul, 1933)

Information at Turn of Dial

WORKING on the telephone dialing principle, London subways have installed a machine which gives passengers the location of a particular place, amount of fare, and platform from which train starts—all at a mere turn of the dial.

Related posts:

1. Phone Robot Gives Weather at Turn of Dial (Dec, 1936)
2. Your Phone Dial Computes Your Bill (Feb, 1949)
3. Hotel Guests DIAL for Radio Programs (Aug, 1935)
4. New Thermometer Boasts Dial-Type Scale (May, 1938)
5. Dial Switches Message Tubes (Dec, 1951)