Rare Marston Navy Model .36 Caliber Revolver. Serial #572. Manufactured from late 1850's to 1860's. Approximately 1,000 made but you don't see them very often. Bore is very good. Action works perfectly. Gun has a blue/brown patina with more blue than brown. This is Third Model by serial number. W.W. Marston marketed his various revolvers under names such as Union Arms or Western Arms. This revolver is unmarked. Barrel length 8"".