Buildings and structures of American railroads. A reference book for railroad managers, superintendents, master mechanics, engineers, architects, and students (1893)
Berg, Walter Gilman, 1858-1908 · New York Wiley · leaf 79
Fig. 117.—Second-fi.oor Plan. Fig. 118.—Second-floor Framing Plan. Where an extensive and complicated switch system is connected with a block station, the spaceoffered by the building under discussion is too small for the accommodation of the switch levers, andanother standard is used, namely, an…
Building · Railroads
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.