things found around civil war site

[ctbond7]

Found these near a civil war battle ground and am not sure what these item are so can someone help me figure them out please. Thanks

 

[civilman1]

Middle item look's like some horse tack,roller buckle.Can you take a couple different pic's of the othre two....hard to tell from what I see.Nice dig's though!

 

[NOLA_Ken]

bottom one looks like a belt plate with a hole shot through it, top looks like the piece that came out of the hole

 

[ynpto804]

More pics and a size reference