✅ SOLVED Old Rusty Fastener thing

[Old Pueblo]

I have no idea what this is, other than that the thing on top appears to be a handle for tightening and loosening.

 

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[4x4x4]

....Looks to me as a quick disconnect for a battery post ,cable (connector).

Mark.

 

[Old Pueblo]

You're right, it does look like its from a battery.