The album is a factory salesman sample photograph album for the gasoline powered Whitcomb mining and switching engines. The company pioneered the use of gasoline, diesel, and electric powered small mine locomotives to replace mules and men as motive powers for hauling ore cars out of mines. These photographs include images of 2.5-ton, 4-ton, 5-ton, 8-ton, 15-ton, and 17-ton locomotives being manufactured, the factory, as well as in operation at steel plants, stamping plants, road building, a 25-ton for the Panama Canal, mining companies, at diamond mines, Wisconsin lumber companies, and more.

The images have captions on the back of the photographs, though most are undated.

These photos begin with an image of a flag raising at the Whitcomb factory on Memorial Day, 1918, followed by images of their 2 1/2 ton-speed locomotives with enclosed cabs, open cabs, followed by images of the open cab with side panels removed, and then in operation near Picher Oklahoma. The photos which follow depict the 4-ton 3-speed mining locomotive, 4-ton shipped to Bolivia, a 4-ton mining locomotive at the Smokeless Coal Co. mine in Johnstown, Pennsylvania; 5-ton 3-speed at Carpenter Steel Co. in Reading, Pennsylvania, followed by several 5-ton friction drive locomotives, one in operation at the same Steel Co. There are also photos showing a 2 1/2 ton hauling a steam shovel for Bath Portland Cement Co. in Pennsylvania, 15-ton standard gauge Switcher locomotives at the plant, as well as the Michigan Stamping Co., and the Casparis Stone Co. Passenger tourist locomotives are shown; a DO machine operated by the Cleveland Mining Co. in Hazel Green, Wisconsin, as well as Class "E", "G", "F", and others in operation in West Virginia, Pennsylvania, New York, Missouri, along with a 5-ton locomotive in operation for the Issaquah Superior Coal Co. in Issaquah, Washington.

Catalogs description: There are two Whitcomb catalogs and an original offprint from the 1932 Railway Age. The first catalog shows the Whitcomb 80-ton Oil- Electric Switching Locomotive with Chicago, Milwaukee, St. Paul & Pacific Ry badging, while the 1932 offprint details the features of the 60-ton Gas-Electric Locomotive tested on the Burlington Ry. The final catalog is devoted entirely to the full line-up of Switching Locomotives.

Blueprints description: Most of the Whitcomb Locomotives were powered by Wisconsin Motor Manufacturing Co. engines, who were famed for their 4- and 6- cylinder engines for heavy construction equipment and locomotives, as well as early automobile companies including Stutz, Kissel Motor Cars, and Case. 1) Power and Torque Curves for type "M" - 5 3/4 x 7 - 4 cylinder motor, Wisconsin Motor Manufacturing Co., Milwaukee, Wisconsin 2) Horsepower and Torque Curves for Model 2C 3 1/8 x 4 1/2 - 4 cylinder engine, 1917 December 15, Le Roi Co., Milwaukee, Wisconsin 3) Horsepower and Torque Curves for type "RAU" motor - 4 3/4 x 6 - 4 cylinder motor, Wisconsin Motor Manufacturing Co., Milwaukee, Wisconsin