Manufactured from 1879 to 1887, the Model 320 revolving rifle is one of the rarest Smith & Wesson firearms produced with a total production of 977. These firearms were serialized from 1 to 977 and out of the 977 manufactured, 224 had the 20 inch barrel. The Model 320 was manufactured in three barrel lengths of 16, 18, and 20 inches with 20 being the rarest length. The 20 inch barrel has a blade front sight, two leaf rear sight, and two-line address/patent dates rib marking. Matching serial numbers are on the butt, cylinder, barrel and barrel latch. The forearm and grips are matching checkered mottled hard rubber. The walnut stock features blued attaching hardware and hard rubber S&W buttplate.

Very fine, retaining 80% original blue finish with the balance a smooth brown patina. There is a patch of corrosion on the frame at the forearm and two damaged side plate screws. Some original case colors remain on the hammer and trigger guard. The grips and forearm are excellent with minimal handling marks and crisp checkering overall. Mechanically excellent. The stock is fine with 70% original blue remaining on the attaching hardware and minor handling marks on the wood. Provenance: Dr. Gerald Klaz collection.