Somewhat off-topic, but the pic on the right is said to be a prototype German design from 1942, allegedly constructed without any knowledge of the Treffas (left). It seems that the Big Wheel idea dies hard.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
It looks as if it might have been a first prototype of that mine exploding vehicle that ended up in a Russian tank museum where it still resides today. The configuration is essentially the same.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.