Look what I found. Old Hyster logging arch. I suspect from the late 20's, early 30's. The patent tag says 'Canada Petented 1931'. Should work nice behind my D2 or RD4 (if I ever get that thing running).
Welded some angle onto my trailer deck because the arch is wider than the deck (arch is 8' wide). The angles worked as a good cradle. Winched it up no trouble. Made it the two hour drive home with no mishaps. I was worried about tongue weight, but the trailer tracked good.