Railroad Brake and Signal Chart. 12" x 16 1/2" cloth bound booklet, "Westinghouse Diagramatic and Sectional Views, Air-Brake and Air-Signal Instructional Charts; prepared and published by Fred McArdle and Henry Helmholtz; 32 pages of drawings with color; assemblies used on locomotives of the C & NW Railroad and other; condition: cover separated, pages are worn at corners.
