This Studebaker Log Arch was used for suspending and wheeling the back end of logs out of the forest. It was made when Studebaker was making carriages early in its history before switching completely to automobiles in the 1920's. It is also known as a log dolly, Michigan logging wheels, Bummer, or sometimes Skidder In Australia this is known as a logging jinker. The hubs of the wheels are cast with the words "Studebaker Company" "South Bend Ind" and "1759" or "1755" or "1175[59]"
It is two large wheels attached to a heavy duty arched axle and a long shaft attached to that with a hook on the end. A chain is put around the end of log. The log arch is wheeled over the log, the shaft is lifted so the chain can be hooked onto the hook. Then the shaft is brought down, lifting the long. The shaft is strapped to the log to keep the end of the log suspended. Then a horse team and carriage is connected to the other end of the log to wheel it out of the forest.
Note: The pictures are from 2014 and there has been considerable powder post beetle damage since, particularly to some of the spokes.
The wheel bearings turn. The wheels are intact, but spokes have been damaged by power post beetle and some should be replaced.
I cannot find another one of these on the internet. If you know of one, please let me know.
I would like this to go to a museum, but will also sell it to a private collector who promises to preserve and possibly restore it. If going to a museum, I would discount the price. If you have friends who would be interested, please let them know about this listing