I know it’s not my usual flat button. Around the middle on front there is a circle of smaller dots or stars. It was in pretty cruddy condition when found and was surprised to see the gold
Looks to be a 1790's-1830's (most date from 1810's and 1820's) civilian flat button. Great find, and a nice design on it too. Put in hot lemon juice for less than a minute and the gold gilt will really shine up.