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

Post date: 2022-11-28 11:07:21
Views: 233
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:
Wall Street and Main Street face off next week with Nvidia, consumer earnings. Here's what's ahead 
How to plan a trip for medical tourism and the best resources
What is this week's meal prep? Please share a recipe
Special Event: Eurovision 2026: The Grand Final
A Man on the Inside: Family Weekend 9
Widow's Bay: Beach Reads
Why Taiwan became the defining issue in the Trump-Xi talks
Trump went big on tech stocks in first quarter of 2026, new filings show
UAE says its decision to leave OPEC was a strategic economic move, not a political one
Creator content made the main stage at TV's 'upfront' pitches — and not just for YouTube