Charlie
I believe they were built in Wiscinsin and made for clearing sidewalks, but they are also not built very heavy/sturdy, guess that's why you don't see many of them. That is only the 3rd one I have seen, in person or in pictures, and is the only one that had any type of mount with it. All 3 have had the cross bar that is pinned to the castings, but mine and the one owned by the Thieme family didn't have any kind of brackets to mount it to the tractor. There should be an upright "post" with a skid plate on the the bottom, in the two castings the cross bar is connected too, and one in the "V". I can post a picture if you need it.