Early Dug Civil War 1-Piece Navy Coat Button with Great Gold

Nice dug Pre civil War 1-piece Navy coat button. The front has a droop wing eagle perched on a vertical anchor surrounded by a ring of 6-point stars. It has great gold. The reverse has a raised droop wing eagle * TREBLE GILT STAND COLR . backmark. It measures 22 mm's in diameter and has a brown patina. $38