This armored monster was built by the Soviet Communists during the Russian Revolution. It could be pulled by a locomotive, could pull a few cars itself and of course was self-propelled. Its "day of glory" occurred when it crashed through the White Russian lines and captured two of their locomotives.
Later it was captured by the Czech Legion, which had gotten trapped in Russia. They used it in eastern Russia to help the White Russians. Somehow Chinese warlords captured it and the Chinese Communists captured it from them. They returned it to the Russian Communists, but Poland captured it in a border war. When WW2 started, the Germans captured it and scrapped it.