• publisher: Toledo, O., Train Dispatchers' Bulletin
  • creator: Collingwood, George Elmer, 1865- ed
  • Keyword: Trainmen Handbooks, manuals, etc. Railroads Signaling.
  • years: [c1907]
  • pages: 2 p. l., 9-127 p.
  • language: eng
  • lccn: s
  • class: TF557
  • download: pdf file