T-55 Iraqi Army, Turret only, hatches open - T-55 Iraqi Army, Turret only, hatches open
Had to look up what the sticky-out bit is at the back of the turret. Turns out to be a crudely stuck on bit of spaced armour, possibly also acting as a counter-balance for the extra front armour. T-55 Enigma (not an official name), used by Iraqi Brigade commanders had appliqué armour on turrets and hulls composed of several layers of spaced armour plates enclosed in steel boxes. It was successful at defeating shaped charge warheads during the battle of Khafji 1991, where one unit is reported to have survived several hits from MILAN missiles before being dispatched by a helicopter (Wiki).