This might be a roadgrader, but I wouldn't think that the wheel would be that far out of plumb.
For what it looks like there might be an Auto Ambulance holding up the rear of the machine.
Waddyouthink?
It's a road grader alright! I think a lot of those old ones had a wheel "out of plumb" like that,....I guess to sort of counter the side forces involved with the angled blade.......I think,.......maybe,.......???
Looks like a real early motorized road grader that has broken a drive wheel and is being hauled in with the broken side on a salvage dolly. That's why it is leaning to one side. The tow car is a 1616-18 Dodge roadster with a pickup conversion.
Erik