The stubby nature of the 8" howitzer M2A2 is apparent in this side view. The large hydraulic recoil spade dominates the rear of the vehicle, and the flat track suspension with the trailing idler wheel is obvious. The engine's air cleaners line the left fender. (Picture available from the National Archives.)
The minimalist nature of the M110's design is seen here; the vehicles have no turret or cover for anyone except the driver, whose position is visible at the bottom right of the image. The driver's periscopes are not fitted on this vehicle, however. (Picture available from the National Archives.)
Compared to the vehicle above, the longer tube of the howitzer M201 is striking. Note that the muzzle of the tube is threaded to accept the muzzle brake which would turn the vehicle into an M110A2. The engine's circular exhaust ports can be seen in the right fender, and the hump in the hull upper front slope is there to allow room for the tall GM 8V71T diesel engine. The bench seat for the loaders above the right rear corner of the hull is folded down for use; this can be seen below the backrest. The recoil spade is also lowered for use. (Picture available from the National Archives.)
The driver is in position in this vehicle, and a stowage box is attached to the top of the recoil spade. (Picture by Anthony Edgeworth; available from the National Archives.)
The very large double-baffle muzzle brake is an obvious identifier of the M110A2 compared to earlier vehicles.
The large recoil spade is retracted on this vehicle. As above, stowage boxes and propellant charge canisters were able to be stowed on the spade for travel. The loader and rammer are folded out of the way of the spade to the howitzer breech's left.
The gunner's traversing controls are visible here, as well as the folded loader and rammer.