This is an example of one of the approximately 3,300 three barrel derringers manufactured by W.W. Marston between 1864 and 1872. Blade front and notch rear sights, with "WM. W. MARSTON/PATENTED/MAY 26. 1857/NEW YORK CITY/IMPROVED 1864" on the left side of the frame, and the selector/indicator knob and 3-prong extractor on the right. The frame is floral scroll and punch dot engraved. Matching serial numbers on the frame and barrels. The rear sight doubles as the barrel latch. Smooth spur trigger, checkered hammer and fitted with smooth pearl grips.

Very good plus. The barrels have a gray patina with some minor pitting. The hammer and barrel latch have a dark patina with some minor pitting on the hammer. The frame has a dark aged patina. The grips are very fine with a couple of small nicks on the lower left edge. The front sight has been filed down slightly but remains partially intact. The markings and engraving are clear and crisp. The action is fine.