Pat 1885 electrical insulator?

Foragist said:

Thank you Coinchaser! Now we can sleep at night.
Nice find Claddy! Clean it up yet?

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coin chaser said:

I tried to get the cleanest pic I could find

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HuntinDog said:

Foragist,
I've asked that twice and for some reason CLADDY doesn't seem to want to do that.
It sure would help in finding an answer.
I'd really like to know.

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coin chaser said:

It’s a jar lid! Did a little googling since I figured a insulator wouldn’t have metal and found this. Cool find. You may wanna dig more and try and find the jar!

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claddy said:

Thanks now we know !

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