A back-door view of the 7TP's prototype turret interior (serial turrets had no back door). From the left, visible are: periscope sight, pistol grip of 7.92mm wz 30 TMG, telescopic sight, 37mm wz. 37 gun's Breeches guard and a pipe for case ejecting, and commander's periscope. An interior of serial turrets was similar. Dismounted co-axial mounting of wz.37 gun and wz. 30 TMG of 7TP tank.