Some mysterious items

[RustyRelic]

Wanted opinions on some of this stuff. I've got a lot soaking in vinegar. I was digging everything in all metal mode just because of the area. Was hoping for gun parts but no luck there.

Are these rusty items horse related? War horse? Wagon train etc..

And this other piece interesting with solder points? I will probably have more questions about some other things when they start getting cleaned up more. Thank you for helping and looking