NW Mailing List nw-mailing-list at
Sun Sep 4 18:31:32 EDT 2022

 Looking at the hopper cars (suggesting date era) I would say this is a PL, not yet a CPL, so the center light is part of the signal.
Jim Nichols
    On Sunday, September 4, 2022 at 02:50:22 PM EDT, NW Mailing List <nw-mailing-list at> wrote:  
 On Ebay for a few more hours is the following:

It appears to show a single-armed CPL with only the three horizontal positions occupied.  I don't believe I've seen this configuration before.  It would seem the signal could only indicate stop and proceed, but there would be no need for the center position.
Any thoughts/speculations as to the purpose of the signals or the location would be greatly appreciated.Jim Cochran________________________________________
NW-Mailing-List at
To change your subscription go to
Browse the NW-Mailing-List archives at
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the NW-Mailing-List mailing list