Here is a very interesting gun! It is an original .36 caliber revolver from the famous Colt firearms Company. This is one of the desirable ones that have the iron backstrap instead of the standard brass backstrap. It has the Colt maker mark "ADDRESS SAML COLT HARTFORD CT" across the top of the full-length 7-1/2 inch barrel. These guns were made in Hartford, Connecticut with the sale office being located in New York City. These .36 Colt revolvers were a favorite of soldiers on both sides. Among the soldiers that used the .36 colt were Confederate General Nathan Bedford Forrest. It fires the standard six shots and is of the model 1851 design. It has all matching serial numbers of 90,895 with the barrel wedge being an original with no number. With these serial numbers we know that it would have been made in 1859. The action of the gun works on all positions. The metal parts have a well worn look. This gun has a few very interesting characteristics compared to most of the guns you encounter in this production timeframe. The gun is produced with an iron backstrap and trigger guard, as compared to the standard brass. Also the side of the frame has the "COLTS PATENT" stamping with the "US" marking below the Colt mark. The cylinder of the gun still retains about 80% of the naval battle scene on it. This scene depicts the battle between the Texas Navy and the Mexican Navy. On the handle of the gun are the original 1-piece walnut grips. The wood has an attractive deep dark color on the pretty walnut wood. What makes this gun really special is the marking on the bottom of the backstrap and grip. On the bottom of the backstrap, it has the remnants of the desirable "U*S*N" for the United States Navy. You can see the "SN" marking. This gun is part of a Navy contract described on page 52 and 53 of the book by John D. McAuley on Civil War Small Arms of the U.S. Navy and Marine Corps. He explains how this gun was one of 600 Colt. .36 model 1851 revolvers purchased by the US navy in August of 1859. It shows that the guns between serial numbers 89,000 and 91,000 are found with these marks. These made without inspectors initials to go along with the U.S.N. marking are believed to have went to the Boston Navy Yard. This is very scarce version of Military purchased revolver. We have only had a couple in our 25+ years of dealing. This is a nice and solid original .36 caliber Colt revolver with the rare US Navy marking that you can tell saw the elephant.