A video of the progress of signaling on the railroads.

[montanan]

 

[Edsland]

Very interesting,thanks

 

[D&J RailRoad]

Enjoyed that video very much.

 

[migalyto]

Very informative, thanks for sharing!

 

[gjohnston]

Great information......... and music too.

 

[JazzDad]

"Glued joint"? (2:30)

 

[Greg@mnrr]

Great video and it explained a lot about signaling.

Greg