Yes it is an antique but not all antiques are collectable and have value
I have seen a couple of these around in my almost 50 years of playing with this stuff the last one the guy could not give me for free
If you check the internet I have not seen any collectors for these or those building one or parts for one and even if there was being in canada and more important MADE IN CANADA would just about make it worth it's weight in scrap IMO by the time it was shipped state side if there is a buyer since we just don't have the interest in any of this type of stuff of any make and model up here
Example I had 5 vintage lawnboy motors mostly 60's may be three years ago that I found bured in my barn all were desirable state side. Some of which I have seen the same ones sell on e-bay for 200 plus each
I could not even give them away at the end of the drive with a FREE sign or a kijiji listing up here in Canada
They eventually went for scrap
Your old iron horse tiller will be a tough sell at any price
However all the best with it
Cheers