Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules (1908)
National correspondence school of railroading, Chicago. [from old catalog] · [Chicago] · leaf 415
Fig. 30. Home Signal Color—Upper arm White light at night. Lower arm Red light at nightIndication—Main route or high speed route clear. Proceed. Diverg-ing route blocked. 404 STANDARD CODE OF SIGNALS. Day Night
Locomotives
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
