[Subjects include: Conrail, Chicago Transit Authority, CSX Transportation, study guides/posters about railroad history produced by the Association of American Railroads (1966), New York, New Haven Hartford Railroad, Boston Maine Railroad, Maine Central Railroad, the Metropolitan Transit Authority (New York), "Working Safely on the Railroad" produced by Metro-North Commuter Railroad, Souvenir Booklet of the Connecticut Electric Railway Association's Trolley Museum, Massachusetts Bay Transit Authority, State of Maryland railroad map, and California Amtrak]