This black & white photo book covers the many (but not all) classes of B&O switchers and Road-Switchers beginning with the 1926 class CG, an 18 ton Plymouth gasoline dinky used on the Philadelphia water front. Other classes covered include early EMC and EMD switchers and Road-Switchers (SWs and Geeps), early ALCO, Baldwin and Lima switchers plus Fairbanks-Morse switchers and Road-Switchers.

The B&W photographs are from the Bob's Photo collection and extensive captions by David Sweetland complete the book.

Bob's Photo, softcover, 48 pages, standard portrait book 8 x 10 in., B&W photographs with captions.