For many years, six-axle Electro-Motive road-switchers were the backbone of Santa Fe's mainline freight service. Volume 4 features them all, from the SD24s of 1959 to the "Warbonnet" SD75Ms of Santa Fe's final days!
Hardcover with jacket, 128 pages, standard portrait format, 11 x 8.5 x .5 in., all Color photographs.