In Monday I asked: What kind of tractor is this, where was it made, and approximately how old is it?

Peter Burger and Joanne Schlegel answered correctly.  "It's a Cletrac, by the Cleveland Tractor Co., Cleveland, Ohio."

I'm not sure about the date of manufacture, but lean toward the Twenties.

More on Cletrac tractors here.   (Congrats to Peter and Joanne.)