American Tank With Unusual Triple Caterpillar Tracks
Photograph of an American tank in 1917. Note the interesting triple tracks as well as the side windows for shooting and for navigation, which are protected by a metal flap. The main armament is a small gun located in a top turret. Also interesting is the height of this beast: it is nearly twice the height of the soldiers, which would have given it a high and therefore unstable center of gravity as well as making it harder to find cover behind natural terrain.