This extraordinary martially inspected U.S. Colt Model 1861 Navy revolver was manufactured in 1862 as part of a 2,000 gun contract with the Ordnance Department, signed on April 13, 1861. Although the Ordnance Department subsequently purchased 363 additional Model 1861 Navy revolvers from Colt distributors, the 2,000 pistols purchased under the April 1861 contract were the only Ordnance inspected, military finished, Model 1861 Navy revolvers manufactured by Colt during the Civil War. After the U.S. Contract Walker Colt revolvers, the U.S. Contract 1861 Navy revolvers are the rarest U.S. martial Colt percussion handguns. This revolver has the Colt military finish with low-polish blue barrel and cylinder, color casehardened loading lever, frame and hammer, natural brass trigger guard and back strap and oil-finished, walnut grip. The wedge, screws and trigger are fire blue. The barrel has a nickel-sliver front sight and the hammer has a sight notch and hand-knurled spur. The top of the barrel is roll-stamped with the legend: "-ADDRESS COL. SAML COLT NEW-YORK U.S. AMERICA-" reading toward the breech. The cylinder is roll-stamped with the Texas Navy battle scene with "ENGAGED 16 MAY 1843." on the leading edge. "COLTS PATENT NO." and the serial number are stamped on the cylinder center-line. "COLT'S/PATENT" is stamped in two lines on the left side of the frame. The full serial number is stamped on: (1) the bottom of the barrel lug, (2) side of the cylinder, (3) underside of the cylinder pin, (4) bottom of the frame, (5) bottom of the trigger guard and (6) bottom of the back strap. The wedge is numbered "8893". The lower left side of the grip is stamped with an Ordnance inspection mark consisting of the script initials "PB" surrounded by a rectangle with rounded ends. Small "B" Ordnance sub-inspection marks are stamped on the right side of the barrel lug and side and back of the cylinder. A "L" sub-inspection mark is stamped on the top of the back strap. The inside of the grip strap is stamped with two "S" sub-inspection marks. A "C" sub-inspection mark is stamped on the left side of the barrel lug. A "T" sub-inspection mark is stamped on the bottom of the left grip heel.