Killen-Straight armored tractor, a contender for the title of "First Tank". I guess I didn't really know that tanks evolved from tractors, but it makes perfect sense. The treads were chain and hardwood!
More:
Killen-Strait Armoured Tractor
https://en.wikipedia.org/wiki/History_of_the_tank
Previously:
Panzer tank hull being quenched
Tank drives underwater - GIF
Can you own your own tank?
tank silencer
Tank bridge - GIF
Train tank - photo
1942 Soviet tank glider - photo and diagram
Starting up a WWII tank on a Ukrainian monument - video
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