mystery button

Any help identifying this button would be greatly appreciated. Dug within. 30 feet of a Hillsborough Academy button in eastern NC. Thanks!

Hi! I found this button searching in my backyard in NC the other day and I have no idea what it is. My land dates back to the late 1800s and I've found a lot of stuff from that time. I have no idea who lived there or how old this button is!!!! It seems like a military button but I can't find any...