Armored Car T17E2 Staghound AA.
The T17E2, or Staghound AA to the British, was similar to the T17E1; the 37mm gun turret was replaced by the open-topped twin .50cal turret. The radio, which had resided in the 37mm turret bustle, was relocated to the hull front right corner and thus eliminated the bow MG (which, however, is still obviously present in this image which combines the antiaircraft turret with a standard hull). The flat turret sides mark this as an early production vehicle; later production cars had turrets with curved sides. (Picture from TM 9-2800 Standard Military Motor Vehicles.)
The bow machine gun is absent on this vehicle, which also has an early, flat-sided turret. (Picture from Weapon Mounts for Secondary Armament.)
This is a later-production car with curved sides on the turret. Some details of the gunner's position can be gleaned from this top-down view, including a sighting ring attached to the braces running across the turret. (Picture from Development of Armored Vehicles, volume II: Armored Cars, Scout Cars, and Personnel Carriers.)
The guns are elevated on this car, and the turret is traversed to the rear. The attaching bolts for the turret ring are visible, as are the joints between the curved pieces of turret armor. (Picture from Weapon Mounts for Secondary Armament.)
The gunner's seat and controls can be seen when looking into the turret from the upper rear. (Picture from Weapon Mounts for Secondary Armament.)
