huge cast iron house jack heavy industrial screw type bottle jack

Big heavy cast iron screw type house, or possibly railroad, jack. This is a very large jack. It weighs 36 pounds!

This adjusts from about 18" high to about 26" high. It measures about 7 3/4" across the jack base and about 4" across the top of the jack.

This is only marked "2 x 14" that I could find. It has a patina of soil, rust and old grease. There's a little mushrooming to the iron from use at the lever holes in the jack head.

It's from an estate in Oshkosh, Wisconsin and the property backed up on the old railroad yard and tracks, so maybe they came out of the railroad, I don't know.