I apologize in advance for wasting your time but what is this?

[SilverFinger]

Ok, I know it doesn't LOOK like anything but I'd still like to know if anyone can pos I.D. it. I found it at a very old house/settlement and it's either copper or brass (which is odd - I was thinking simple slug but it's def. copper or brass), is a little larger than a .50 cent piece, has no markings (that I can see) and has a little pinhole smack in the center of it. Can you tell I'm bored?

 

[Iron Patch]

Isn't there an old detecting saying that goes.... If you don't know what it is, make it what you want.

 

[Woodland Detectors]

Blank watch face

 

[baldy804]

possibly a trade token