The Library of Congress:
Identified! [American cryptographer William Friedman with a Western Electric-manufactured printing telegraph]
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
Identified! [Man with an ultraviolet light machine for detecting counterfeit money]
The Library of Congress:
Identified! [Man holding a Weston Electrical Instrument Model 322 microammeter at a window]
The Library of Congress:
Identified! [A Jenkins Television Co. worker with device to broadcast motion pictures over radio signals]
The Library of Congress:
Identified! [Man working with wires in the back of an early television screen]
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
Identified! [Man with a US Navy Department photoradiogram (or photo-radiogram), probably related to the first message sent between the Navy Department and the flagship of the president]
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
Identified! [Walter S. Lemmon (left), developer of the radio typewriter with a radio engineer testing the device at the Bureau of Air Commerce of the Department of Commerce]
The Library of Congress:
Identified! [Sarah Keefe, teletype operator demonstrating sending Weather Bureau, Bureau of Standards weather maps using a teletype device in the offices of the American Telephone and Telegraph Co., Washington, D.C.]
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
What's This Gadget?
The Library of Congress:
Identified! [Man preparing a "smoked paper" to be used in a seismograph, probably at Georgetown University]
The Library of Congress:
Identified! [Postmaster General Harry S. New, standing next to the largest airmail letter ever sent, from the Greater Muskegon (MI) Chamber of Commerce commemorating the opening of airmail service between Muskegon and Chicago] (LOC)
The Library of Congress:
Identified! [Frontiersman Richard Clarke (1845-1930) dressed in Western clothes during a visit to President Calvin Coolidge at the White House, Washington, D.C.] (LOC)
The Library of Congress:
Identified! [Polish ambassador to the US, Tytus Filipowicz, posing for artist Leon Makielski] (LOC)
The Library of Congress:
Identified! [Charles Tillyer Trego, director of the film "Isles of Paradise", which was shot in Bali, possibly in Washington, D.C., for the premier of the film] (LOC)
The Library of Congress:
Identified! [Western movie actor Tom Mix at the White House, Washington, D.C.] (LOC)
The Library of Congress:
What’s the story here? (LOC)
The Library of Congress:
What’s the story here? (LOC)
The Library of Congress:
What’s the story here? (LOC)
