Any antique gun experts on here?

So I haven’t been able to get out much lately but when I have I have pounding the area where I found the gold cuff link hoping to find the matching one. The area is light on signals but almost everything that comes out of here is colonial. The items here are from my last few hunts at this location and include a 1787 Connecticut copper, 2 cut coppers that I believe are counterfeit because they only beep a 16 on the nox, a few buttons, a piece of shoe buckle, and something I never expected to find. I’m 99% sure it is a trigger guard from a colonial musket with very fancy scroll work on it. I swear I can make out a 6 in the middle of the scroll work. Close to this area I have found a continental navy button and two George Washington buttons. Could this be from a Brown Bess from the revolutionary war? Not sure how it got there and you would think someone would have noticed when it broke off. Thanks for any info and as always good hunting to everyone.