Non Dug Silver Civil War Maine State Seal Staff Officer Coat Button

Non dug silver washed Civil War Maine State Seal staff officer coat button. The front of this Maine coat button is silver washed copper. The reverse has a, c. 1860, Scovill Mf'g Co, Waterbury, between two rings of dots, backmark. The shank is straight. A very scarce button when silver washed. $250