In the 1950s, how is a message sent from a speeding train via "loop"?

Post date: 2022-11-28 11:07:21
Views: 277
In the 1952 movie The Narrow Margin, the police officer hero sends a message from a speeding train, apparently by writing it on a piece of paper for a railway employee next to the track to physically swoop it down. What is this device/interaction/method of communication ?

This all happened very quickly, so it was hard for me to understand what was happening or know what I was looking at. This link briefly describes the shot: https://classicmovierev.com/the-narrow-margin-1952/

" At the next town, a railroad employee snags a loop off the speeding train with his arm and has Brown's message for the Highway Patrol."
Please click Here to read the full story.
 
Other Top and Latest Questions:
Trump to allow import of 300,000 metric tons of ground beef without tariff
Gold rebounds as bond jitters, debt fears and weaker dollar revive bullion demand
Gift ideas for a 6 year old engineer!
Movie: Pictures of the Old World
Movie: Police, Adjective
Special Event: The Riffs of Isle of Rangoon: Technology
Movie: The Swindle
The Bombing of Pan Am 103: The Bombing of Pan Am 103 (all episodes)
Ray Dalio says Bessent move is sign that a debt crisis is getting closer; recommends gold and bitcoin
Supreme Court allows Trump to continue White House ballroom construction for now