Notes on signals of Signal Section, A.A.R., standard flashinglight type, using separate lamp units for back lights, as part of Public Works Administration highway improvement program in North Carolina, installed at three crossings of highways with single-track main lines of Seaboard Air Line.
Highway crossing signals on Seaboard in Carolina
Ry Signaling
Railway Signaling ; 28 , n 3
1935
2 pages
Article (Journal)
English
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