Learn how photos are wired from one end of the country to the other in this clip from a 1937 educational film. It's a pretty amazing piece of not-particularly-high technology. Western Union first sent a halftone photo in 1921, and Associated Press started its WirePhoto service a couple years before this film was made. Love the scenes of the front page being made up with lead type and mattes. Poor ol' newspapers.
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So it's a precursor to a fax machine?