Snow Bird Paddle tires for the Model T and Model A... those are the strange and unusual tires still being produced

The 'Snow Bird', discontinued in 1939, was used by Adm. Richard E. Byrd on his Antarctic expedition.

The paddle tread is made to lock into the track system, which was manufactured by a conversion company in the 1930s.

https://www.amerequip.com/amerequip/history.html

I don't remember this, but I covered these Snow Birds before http://justacarguy.blogspot.com/2015/12/1929-ford-super-snow-bird.html

Heard about this tire when reading Hot Rod interview the new CEO of Coker Tire
https://www.hotrod.com/articles/take-5-sema-chairman-coker-president-wade-kawasaki/