| Here is another Richmond, Fredericksburg & Potomac Northern wearing the "Automatic Train Control" sign signifying that it has the Pulse Code Cab Signal that was developed by Union Switch & Signal Co for the Pennsy, a much simpler, older version of in-cab signaling. No date or photographer was listed for this photo. |
| Date:
6/1/1950 |
Location:
Alexandria, VA Map  |
Views:
252 |
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" |