This M901 is based on the M113A2 APC, since it appears that the idler has been raised. The TOW targeting head is in the stowed position, aimed to the rear and tilted down. The driver's hatch at the front left corner of the hull and the turret hatch are both open, and the cylindrical structure behind the driver's position is the commander's periscope.
Internal stowage of the vehicle can be seen here. Missile racks line the right wall, and the lower part of the turret can be seen as well. On the turret floor by the missile gunner's left foot is the weapon station emergency power battery, and the missile guidance set is on the opposite side of the turret floor. The turret slip ring can be seen directly under his seat. The gunner's seat is visible just below the monoxide warning on the engine compartment rear access panel. The turret slip ring can be seen directly under his seat.
A bench seat dominates the opposite wall of the passenger compartment.
The hole in between the two missile launcher tubes houses the tracking and guidance optics. The daysight/tracker assembly is on the bottom of the opening, and the nightsight is above these.
The hammerhead turret on this vehicle is raised and ready to fire. The rest for the missile turret can be seen towards the rear of the vehicle. This ITV was participating in Exercise REFORGER '85, and the yellow strobe light is part of a wargaming system that alerts if the vehicle has been destroyed. (Picture taken 1 Jan 1985; available from the Defense Visual Information Center.)