2397 This is interesting. It is obviously a lever, but...
It is very robustly built, but only has a 2:1 mechanical advantage.
There is no way a person, even jumping on the long end, could apply
enough force to justify the robustness.
I'll guess this is a tool used by a rigger, or possibly a stone
worker/setter. Probably used in confined spaces. Another lever or jack
may be used to apply force to the long end.