Kentucky State Seal Button, Civil War Era?

[MilitariaCollector]

Does anyone know how old this button is and what it was for? Was it for the state militia? Is it Civil War era? The back is marked Waterbury Button Co Waterbury Con. Any help is appreciated!

 

[duggap]

According to "American Military Button Makers and Dealers; Their Backmarks & Dates" your button dates to 1870 to 1890.