1800s Site - Trade Silver? ID Help?

[Indiana Digger]

1800's Site - Trade Silver? ID Help?

Today's Finds include these relics:



Here's a detailed photo of the "silver disk".



This is not aluminum. I cannot bend it.
It came out of the hole this shiny.
I have found other trade silver on this site in the past.

Your thoughts?

Thanks,

~Indiana Digger~

 

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[Ifoundit69]

Cool finds , that one piece could be a rivet but just a guess