I dug this button on an old hunted out site today. The house that was on this site was destroyed over 50 years ago. I have dug coins on the site as old as shield nickels. I dug a CSA uniform button about 100 feet away, as well as various other Civil War period relics. The location is very close to a spot that saw limited skirmish action in my hometown (the courthouse was burned after Confederate cavalry ran a small contingent of colored Union troops out of the building.)
It appears to me to be a Navy button. The size is 18mm. The back mark is “Scoville Mfg Co. – Waterbury.“ Any help on identification and date would be appreciated.