Found this today in an old farm field. Kinda tough to see but looks to be an eagle facing right, was wondering if this is possibly a us military button. It’s pretty small, I’m assuming cuff button. It’s flat button, not a two piece but can’t make any writing out on the back As always any help is appreciated.
1820s through 1830s Mexican Army officers buttons were very similar to the button posted by nhbenz. Just a thought. And it would have had o travel a long way to get to Massachusetts. There are many variations.