This piece of cutting edge heavy equipment from the 1920s was affectionately named "Jumbo". I came across it after doing a search on the word "*****" (Search word deleted to keep it suspenseful) on the Maine Images website. Without reading it's description, I attempted to guess it's function.
Obviously a wagon of some type, I showed my brilliance in deductive reasoning and figured it was used to haul something. Once over this safe leap of logic, I strained myself and considered what it's cargo might be. Something big and heavy that's for sure. Those reinforced larger rear wheels told me this wagon was meant to wear the over load banner. But considering the bed sat inside the wheels, the freight of this rig had to be heavy but not bulky.
That's as far as I got. I could not for the life of me consider what this might haul. It was not a wagon made for the road. They had trucks in the 20s. That this was farm equipment on steroids is all I could think of after some minutes closely regarding the picture.
Frustrated and I did have other things to do, I gave up and peeked at the answer. And you will too if you want to know what it is. Or you might be a idiot savant who has an encyclopaedic knowledge of wagons dating back to Rome. Either method will work.