Early Snowmobile Video From 1920s Surfaces

Video has wormed its way to our office of a very early snowmobile design.
The video, shot in the 1920s, features a vintage tractor with pontoon-looking attactments on each side that corkscrew their way across the snow.
The video is amazing, showcasing the incredible capabilities of the machine. The video is long, but stick with it, and see the drivers spin circles, claw over deep snow and generally go where no man or machine could at the time.
See the video below.