The final Volume in this trilogy describing operations from steam days to its most current inception.
Contents: Pittsburgh Division, pp. 3-45,Allegheny Division, pp. 46-73,Branches, Mine Lines and Short Lines, pp. 74-126,Addendum, Bibliography, pp. 127-128.
Hardcover with dust jacket, 128 pages, 8.5 x 11 in., Color photographs with captions.