A must-have for North American freight car fans and modelers, the Incentive Per Diem Color Guide from Morning Sun Books looks at examples of colorful boxcars from nearly every small road that operated them in the 1970s when tax laws make it profitable for shortlines to acquire boxcars. Besides pictures of hundreds of cars built new for this service, there are some definite surprises inside. A great photographic resource for modelers and railfans, if the 1970s is your era of interest, you′ll want Incentive Per Diem Color Guide! Hardcover, 128 pages.