75 dpi color pdf (2300K)
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150 dpi DjVu bitonal (800K)

New York Central 1964 Side Track Diagram
Cleveland: E. 140th to E55th
300 dpi DjVu bitonal (116K)

New York Central 1964 Side Track Diagram
Collinwood
300 dpi DjVu bitonal (126K)

Collinwood Interlocking June 21, 1929 (hand written revisions into the 1960's) 300 dpi djvu bitonal: Diagram (90K)
14 page Manipulation Chart revised to 1957: 300 dpi: djvu bitonal (544K) | pdf greyscale (1360K)
Courtesy of Mark Nilges