For your consideration, here is a 1957 B&O Baltimore and Ohio Railroad System Time Tables, issued April 28th, 1957. It measures 4 1/8 by 8 3/4 inches, unfolded and has 42 pages.

It has wear on it and creases on the edges. Lot of interesting ads and general ticket information. Item pictured is the actual item up for sale and comes from a non-smoking household. (115.172r-.5od)