UPDATE: **Status Unknown** Was $12,000. You can see this lift in action at the beginning of this video (thanks to Harmen for point it out): 

(02/04/2019) Interesting lift. Maybe a more advanced version of the Farm-Aide lift? You can compare this one to some others: http://farmjeep.com/lifts.html … There might be a data plate on the right side near the pivot.

https://sfbay.craigslist.org/nby/cto/d/petaluma-1948-willys-jeep-cj-2-restored/6806419072.html

“Restored a few years ago, with only 23 miles put onto it since then. Yes, 23 miles.

-Body was removed and professionally painted
-Engine was professionally rebuilt. Full tear down and rebuild
-Has factory installed 3 point hydraulic hitch
-Comes with plow attachment
-New brake cylinders and new brakes
-Converted to 12volt
-Currently non-opted with $0 back DMV fees
-Comes with original owner’s manual
-New tires

After WW2, Willys started to produce vehicles that could be multi-purpose. They wanted to build a truck that could complete with a tractor on the farm, so there were a bunch of factory options you could order the truck with.
This one has a factory installed hydraulic lift on the back. This was so you could pull a plow ( which comes with the truck ) or any number of other accessories. It could be disconnected if desired though.

The Jeep also comes with the rear seats and tailgate which could be installed if the hydraulic hitch is removed. “