Nice civil war artifacts found today!!! Help on one?!?!?

[TheBestFindsNC]

I found these at a union camp all in a field about the size of a football field. Some bullets and a cool button. Any ideas on what type of button? And what is the other object I did a close up of? It was found 10 inches down and the bullets were only 8 inches so it has to be civil war. Thanks everyone!

 

[wvwildman]

nice finds congrats HH

 

[vpnavy]

Can't help you on the button but wanted to say you had some real nice finds TheBestFindsNC.

 

[CASPER-2]