Signals

[shamoo]

What are Overhead Distant Signals and what are Pot Signals, as pertaining to the Pennsy? I have a good idea but, would like some reassurance. Are these electric light or did they take on some other form? Time period is 1925 in Harrisburgh.

[ndbprr]

absolutely electric. Overhead sugnals may still have been semaphores at that time. Pot signals are teh small terminal and yard signals with four lights like this:

o
o
o o

Vertical isproceed, diagonal is caution and horizontal is stop

[ndbprr]

the forum overruled my drawing! The middle one is supposed to be at a 45 degree angle to the right. The forum removed my spaces in my drawing to do this.