Rathdrum, Idaho 1926 - what model of tractor

While collecting photos for a family scapbook I came across this photo. This is my great granddad Martin's tractor. It is seen here hooked to a team of horses to plow roads across the Rathdrum Prairie during the winter of 1926.

I am thinking this is an old Hart Parr or CASE but no one remembers and no one is around to ask. What are your thoughts?

I suppose it won't be too many years until the whole Rathdrum Prairie will be suburbia. What a shame to waste good farm ground, but who can blame the farmers for selling out? The ground is way more valuable as housing spots than you could ever earn farming it.

Hope you like Florida. One of my sons is going to Florida State in Tallahassee, and I spent a little time with him when he moved there last year. Pretty flat country...I think I would miss looking at my mountains! We are coming into the nice part of the year: I think it hit 70 today and it is supposed to stay nice thru Monday.

Hope someone else recognizes the tractor. Good luck!