The Electrograph

From the accompanying illustration and title it will readily be seen

that rather good pictures were reproduced with pen and ink method in

1890.

The original of this picture was given the author by Mr. T. A.

Witherspoon, who at the time of the experiment (1900) was a principal

examiner in the U. S. Patent Office, and detailed in charge of the

Patent Office Exhibit at the Buffalo Exposition, where, also, these

machines were on exhibition.

It may be a coincidence of passing interest that from Cleveland

twenty-four years later the American Telephone and Telegraph Company

sent their first wire pictures.

[Illustration: 1910.—Baker. 1. PHOTOGRAPH WIRED FROM PARIS TO LONDON]

Vision by radio, radio photographs, radio photograms · 第 91 / 126 题