[PRCo] Nachods, Etc.

[Ken and Tracie]

Scott,
Here's that signaling chapter from the 1920s technical book I mentioned. I'm 
"cc'ing" these quick scans to the Pittsburgh Faithful as the PRCo 
interurbans used Nachods on some stretches and West Penn used a manual 
signaling system in places.

Merry Christmas,

K. 


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