.44 Centerfire. 5.75" barrel length. SN: 194856. Blued finish with casehardened frame, brass triggerguard, and one piece walnut grip. Single-action loading gate revolver converted from percussion by Colt using the Richards and Mason patents. The left frame is struck with patent marks reading PAT. JULY. 25. 1871./PAT. JULY. 2. 1872. with the barrel marked -ADDRERSS COL. SAML COLT NEW-YORK U.S. AMERICA-. The serial numbers match to all principal parts but the wedge pin and grips are not numbered. Punch dot mark to rear cylinder opposite an S stamp along with a T to the rear barrel lug. There is a C stamp in the hammer recess, and the loading gate is struck with assembly number 438. Springless wedge pin and mounting an externally sprung loading gate. The hammer features a firing pin installed with two cross pins. Replaced front sight. Item features a Richards style ejector rod housing that is non numbered with rough manufacture suggesting it is a replacement installed some time after the conversion. Richards model revolvers were completed at the factory with eight inch barrels, indicating this one has been cut down since production. The revolver comes with a leather flap holster held together with flat tacks along one side and mounting a black painted fastening stud. The second Model Richards conversion combined the Richards pattern ejector rod housing installed in the loading lever channel but adopted the major mechanical components of the Mason pattern conversion, including the Mason conversion plate.