Scope and ContentColor Light Signal Aspects. A Programmed Instruction Course. Prepared by Labor Relations and Personnel Dept., Training Section, Conrail, Philadelphia. Revised issue of September 1976. Oblong, staple bound leaves, 5-3/8" high x 8-3/8" wide, unpaginated, circa [100 pp.] Ballpoint name on cover: T. Walsh. Publication code: CT 7139 Rev. 9-76. Most leaves are printed two sides with spot color to indicate the red, yellow and green signals depicted in the numerous diagrams. On April 1, 1976, Conrail took over operation of the bankrupt Erie Lackawanna Railway including the suburban and regional passenger service at Hoboken. This instruction book would have been typical of those used by Hoboken employees.