One of the earlier versions and for a three tank this one is armed with the 75 millilitre gun it also has the caliber. 50 machine gun and two m1919. 30 caliber machine guns. One is mounted coaxially with the main gun. The other is mounted here. Gunner. If you look here, he can show you how the ball term iturret works. He has his ammunition in the back and to the back to catch the bag to catch the shell casings. Right here, its a prismatic periscope that sticks up through that space. Inside the periscope is a lense that has a rhetical. He uses that this is another one on this side. This is not the main gun. This one is controlled by the gunner. There is a switch to fire the machine gun. The gunners periscope comes up to the inside his gunners periscope comes up for the inside. Their field of vision is fairly limited. The critical thing for the commander was, he would have to lay the main gun on the taget side so the gunner can see it. Typically, the tank commander will announce the enga