That looks an old one Mll.
Very lucky to find any transport wheels with it!
It's a grain binder as noted by everyone else,and made earlier than mine, sometime after 1902 and Maybe no later than 1908.
(Definately before 1923!)
There is some confusion in my mind re. when they stopped trading as Deering, and started calling them McCormick-Deering. (The merger was 1902, but they kept their individual names for a while)
I found a Deering binding attachment in the bush recently, but this one is a bit more modern, as the one I found is pre-merger.
Seems Massey Harris used a lot of the Deering ideas, inc. the trip arrangement and the reel drive.
Twine can on front, like all the later ones with Deering binding attachments.
It looks do-upable!