Mack Armored Car.
This vehicle has closely-spaced dual tires on the rear, but it is difficult to see in this image. The armored bodies placed over all three truck chassis (Mack, Locomobile, and White) were essentially identical, although the engine radiator grille did undergo revision throughout the vehicles' service. The drivers were provided with a folding visor, and the doors in the hood directly ahead of the front passenger concealed a search light that swung out for use onto the brackets mounted on the right side of the hood. Sliding port holes were provided in the rear door, on each side of the drivers' cab, and two on each side of the rear compartment. The Mack was fitted with sectional block tires when this picture was taken, and the machine guns and their "barbette" shields are absent. (Picture from Development of Armored Vehicles, volume II: Armored Cars, Scout Cars, and Personnel Carriers.)
The barbettes are mounted here, and details of how the searchlight is deployed by swiveling up and outboard can be seen. (Picture taken by Press Illus. Co.; available from the National Archives.)
The searchlight is mounted for parade duty, and the New York National Guard livery is applied to the side. A barbette is visible between the two front soldiers. Note the right front wheel, where the spokes are visible behind the armored disc. The left-side headlight has apparently been damaged. (Picture taken 19 Mar 1918 by Adolph A. Langer; available from the National Archives.)
The front of the vehicle is detailed while it is unloaded at a Jersey City railyard after participating in the inaugural parade in Washington, DC, on 6 March 1917. The hinges for access to the top of the engine can be seen, and the wheel spokes are obvious behind the armor disc. Both headlights are present in this slightly earlier image. (Picture taken 6 Mar 1918 by Underwood and Underwood; available from the National Archives.)
The crew of the Locomobile "defends against attackers" while the armored car is hitched to one of the 4x4 Jeffrey trucks built for the New York National Guard. Stowed on each fender of the Jeffrey was an I-beam that could be used to bridge ditches. (Picture taken by Press Illus. Serv.; available from the National Archives.)
Pedestrians' idyllic walk is disturbed by the Locomobile (front) and White (rear) machines rounding a corner on a practice run. Note the raised armor above the cab that could be used as a shield for troops in the passenger compartment. (Picture taken by Kadel & Herbert; available from the National Archives.)
All three vehicles in the set are shown in this picture. In the foreground is the White, the Mack is in the middle with the machine gun barbettes fitted, and the Locomobile is at the back. The similarity of the armored bodies mounted on the trucks is apparent. (Picture from Tank Data, vol. 2.)
