Telephone History: "Far Speaking" 1935 American Telephone & Telegraph (AT&T); Bell System (Patreon)

Telephone History: "Far Speaking" 1935 American Telephone & Telegraph (AT&T); Bell System

Support this channel: https://paypal.me/jeffquitney OR https://www.patreon.com/jeffquitney more at http://quickfound.net/ "History of telephone development from 1877 to 1935." Originally a public domain film, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.