Just turns a valve off and on

By looking at the end of the tool, it appears to be a specialty tool for adjusting nuts and bolts for the railway 🚃

Fire plug handle - maybe.

Sounds like a beautiful walk.

looks more like an old stabilizer bar for 3 point hitch

Valve for either a ship or water district.

...then it is something that broke off a train???? If you don’t know then how will you figure the right answer? I can just say it looks like a flying saucer handle that fell off from the Moon yesterday 🤔🤔

0:42
[media=https://youtu.be/o0-G0i6f8bc]
[b]It fits over the square section rod to work the railway siding[/b]

.... can I touch it?

Handle for switching rail sidings. It does look similar to a fire hydrant wrench.

A galdot it's used for spinning the thing

Murder weapon?

It looks like a canal lock key to me

Looks like a valve handle , not a wrench.
It's long for leverage. The hole at the end is to lock it into position, the smaller hole probably had a pin on a chain attached to it.

Looks like a wrench that would fit railroad tie screws

Upon further contemplation of this while outside sitting on the curb smoking a joint, I realized that this tool you found could probably be used to make the water spray out of the fire hydrant that I was sitting beside, which makes me feel all the more envious of you, lol.

Cheers

Fire hydrant wrench looks like that