Some whatsits from a WWI(ish) site

[UnknownArts]

So I'm pretty sure the are in which these came from is a WWI era site that had a lot of military activity. I've found several rope tensions, eagle buttons, and casings. Oldest coin from the site is 1874 but most others are early 1900s. Good chance these are trash but they made it past the first purge

 

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[Indian Steve]

The thing in the third and fourth shot looks like a door stop. The chain & tag looks like a cow tag.

 

[DCMatt]

Item 1 & 2 is the ring or wreath portion of a tongue and wreath belt buckle.

I agree the 3 & 4 are a fancy door stop.