All electric plant with panel type control machine, replaces old mechanical interlocking at busy Ivorydale Junction on Baltimore and Ohio main line; track and signal plan shown.
B and O installs modern interlocking
Ry Signaling Communications
Railway Signaling and Communication ; 44 , n 7
1951
4 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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