✅ SOLVED What could this be? Not a button... not a pin...big and found. Thoughts?

[Rustic]

Found this today, at the site where I've found an 1802 and 1824 large cent and 1787 Connecticut copper so I'm thinking this is of a similar age.

It's a large, copper (I think it's copper, not sure) disk with a corroded back. On the back looks like it was designed to be slid over either a leather belt or a wood slat, or a metal strut or something...

I'm thinking it's decorative in nature perhaps, but I'm hoping someone will take one look and know exactly what it is, so I won't have to wonder any more.

Thanks for looking!

 

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[jewelerguy]

looks like a large bridle rosette

 

[Rustic]

looks like a large bridle rosette

Thank you, that must be what it is. I looked up what a bridle rosette is, since I never heard of it, and the description said "most easily identified by a large rectangular shank through which the bridle strap passes to hold them in place".

That describes this exactly.

Thanks for the fast answer!