Small heavy threaded copper thing

[GopherDaGold]

Found today in a county park. Any ideas? Thanks!

 

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[Toecutter]

My first thought is some sort of old resister, but not sure could be a flag pole final adapter

 

[tamrock]

Possibly a plate pillar or some part to an old clock movement.

 

[Tony in SC]

I think tamrock is on the right track. It does look like a pillar or spacer of sorts.

 

[Anduril]

Looks a little like a GM car battery adapter.
Link to photo: https://www.autozone.com/batteries-...uralast-gold-side-battery-terminal/102303_0_0

 

[SanMan]

It's a, "stand off"