Not enough problem in ability in protection in armor that aim at the KV-1 1941 type, design the personnel proceeded a series enhance the work of the armor, turret of the KV-1 improving behind comes to an about 75mm of thicknesses.

Form the KV-1 shown at the bottom of the lefthand page there arose this KV-1 with a German 7.5cm L/43 cannon and German commander’s cupola. The armour was sprayed with German camouflage paint.