flintlock

Any gun experts able to identify the age or model of flintlock gun this is from?

these are some more finds from my 1800's abandoned town site. Where i have found civil war military relics the soldier brought home and so much more. I'm fairly certain #1 is a trigger guard, but from what? Rifle or pistol? could this be a military issue weapon someone brought home to go...

I am pretty sure I have dug the hammer to a flintlock weapon, based upon the round screw set on top. I have never seen a flintlock hammer with a solid front face, I thought the flint was normally pinched beneath the screw set and stuck out front. Anyway, not sure about what type of weapon this...