Is This A Civil War Era Kentucky Button?

[AirMechanic]

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!

[dag]

Post Civil War,  1870-1890 per Tice's book on Dating Buttons. Post war militia.  

[AirMechanic]

Thanks for the info!