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

Post date: 2022-11-28 11:07:21
Views: 168
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:
How to change homepage title in Q2A?
Why do I get “You do not have permission to perform this operation” when editing my listing, and how can I fix it?
Jim Cramer says he's not abandoning the Mag 7 stocks despite recent struggles. Here's why
Shares of CSG, one of the world’s fastest-growing defense firms, jump 31% on debut
Intel's likely to still move higher. Here's a 'no-cost' options strategy to play it
House passes final funding bills 8 days before shutdown, Senate now will consider
A former Trump official wants to build a massive data center in a remote corner of Greenland. Will it work?
Capital One is buying startup Brex for $5.15 billion in credit card firm's latest deal
Trump's push for Greenland mineral rights could block China's access to rare earths
Intel stock drops 15% as manufacturing troubles overshadow earnings beat