This fold out page technical promotional brochure with many diagrams, explains the apparatus available to support the signalling process. Condition: See above.
Westinghouse Signalling Parts Brochure Short/ Long Fuse Bases & Clips 250V 1949
Westinghouse Signalling Parts Brochure Fuse Bases & Clips Style E 1949
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Westinghouse Signalling Parts Brochure Bus Bars 1949
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