Hey Mike or other button experts, Can you ID this button............................

[KyBud(InezKy)]

Hunted about an hour at an old homesite yesterday evening. It has history of CW activity in the area, a few scarmishes etc. There was a union fort about ten miles down the river (Louisa KY). I can't find any buttons like it on the internet. Am hoping someone on the forum can help ID it. I cleaned it some and it looks to be made of copper or brass. Thanks fer any help.
God Bless & HH
KY Bud

 

[Mike Chgo area]

n/t

 

[steve in so la]

my Albert's button book and did not find it. Steve in so az

 

[Mike from MI "Iron Brigade"]

maybe a WWI collar disc. I will see what I can find!

 

[relics4plus]

It is a WWI collar disc.Cool finds
HH
Jay

 

[Mike from MI "Iron Brigade"]

I got confirmation! WWI collar disc!

Glad to help!