Sending photos in the 1930s - GIF

Sending photos in the 1930s.

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Previously:

1930s diving suit - GIF
1930s early car ramp jump stunt - GIF
1930s family bicycle - photo
1930s lathe operator at Leys Malleable Castings Company - photo
1930s razor blade sharpener restoration - GIF
1930s shaper operator - photo
1930s vertical turret lathe - photo

https://www.youtube.com/watch?v=yuUyt9RG7pk

That "Secret Life of the Fax Machine" sprang into my mind, too, a good watch. I met Tim Hunkin recently at his amusement arcade in London, Novelty Automation, which is well worth a visit and will probably appeal to members.
https://novelty-automation.com/
He also has lots of Youtube videos which are informative, educational and entertaining...! (e.g. "The Secret Life of Components")
https://www.youtube.com/@timhunkin1

Back around 1990 on cable TV "The Secret Life of Machines " was on one of the channels, probably TLC or Discovery. I never missed it. Very entertaining and interesting. One of the machines in the arcade was featured and it was fascinating how it was designed. Like you said, there are many on screwtube.