Your Telephone Of Tomorrow (Sep, 1956)
ON SOME night in the future a young man walking along Market Street in San Francisco may suddenly think of a friend in Rome. Reaching into his pocket, he will pull out a watch-size disc with a set of buttons on one side. He will punch ten times. Turning the device over, he will hear his friend’s voice and see his face on a tiny screen, in color and 3-D. At the same moment his friend in Rome will see and hear him.
Robert G. Beason