Please help possible part of a brass botton

[allison86]

Went out on a hunt at the park here in WA state that was a army fort during the mid 1800s then it became a mental hospital. This gave a good signal on the Garrett at pro , pro mode I think it chould be the top of a button

 

[allison86]

Here a other pic of it

 

[Icewing]

Are you sure it's brass? It kind of looks like a little freeze plug.

 

[allison86]

I am guessing it's brass it gave a good signal on the garret at pro

 

[allison86]

And it's not rusty