Gun butt plate?

[Kaleb71386]

I wasn't sure if I'm right about this being a butt plate and wanted more eyes on it what you all think? I also found a old ring and round ball along with a flat button in that area.. The plate is brass and you can't bend it by hand unless you gave it your all

 

[DCMatt]

Could be...

 

[Charlie P. (NY)]

Agree with DC - Trade Gun butt plates were often nailed in place. This one is from a Northwest Trade Gun. And Indiana Territory was part of that region at the right time.

 

[BosnMate]

I'd say part of a butt plate off and Indian Trade Musket.