A few brass items. Maybe Civil War musket or cannon related ?

[DirtyMike]

Not sure..... I think they are solid brass.

 

[vayank54]

The first piece looks like part of a brass rifle butt plate ( civil war)

 

[Bigcypresshunter]

The last piece looks like a patchbox cover but probably not.

 

[Arid-Zone-A-seeker]

I believe the first piece is a front part of a trigger guard.
The second piece looks like a latch piece from a cupboard, the stantionary part, with a spring loaded part ridding over the ramp, then locking in the squared portion.
The third i believe, is a Cleaning rod compartment cover that is in the butt plate from a military rifle, it's to thick to be a cap or patch box cover, I believe.
Arid.

BigC, is that your underhammer? nice one anyway,,,,

 

[Bigcypresshunter]

I believe the first piece is a front part of a trigger guard.
The second piece looks like a latch piece from a cupboard, the stantionary part, with a spring loaded part ridding over the ramp, then locking in the squared portion.
The third i believe, is a Cleaning rod compartment cover that is in the butt plate from a military rifle, it's to thick to be a cap or patch box cover, I believe.
Arid.

BigC, is that your underhammer? nice one anyway,,,,

Nope online pic.

 

[dozer dan]

4th pic. part of a brass foot bolt for double doors?

 

[Charlie P. (NY)]

I'm leaning more towards furniture than firearm. They are rough wax cast and firearms invariably used polished brass when brass was used.

 

[Ramitt]

The last piece looks like a patchbox cover but probably not.

Looks similar, but would it be that thick?

 

[Charlie P. (NY)]

The last piece looks like a patchbox cover but probably not.

Looks similar, but would it be that thick?

No. The older ones are 1/32" sheet brass and later cast ones perhaps 1/8" but much larger in diameter. And it would have a catch mechanism of some type to keep the contents in.