| Here is another view of the front of the Richmond, Fredericksburg & Potomac Northern showing the "Automatic Train Control" sign on the front. Developed by Union Switch & Signal for the PRR, it was an early attempt at in-cab signals along the simplistic idea of the modern Postive Train Control. No date or photographer was listed for this photo. |
| Date:
6/1/1950 |
Location:
Alexandria, VA |
Views:
300 |
Collection Of:
 
Gary Everhart |
| Locomotives: |
Author: Gary Everhart
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| Picture Categories: Roster,Yard,Steam |
This picture is part of album: RFP "Pulse Code Cab Signal" |