Manufactured in 1870, this is a very nice example of an engraved Colt Model 1851 Navy revolver done very much in the style of Gustave Young. The upper and side barrel flats, barrel lug, frame, rear sides of the loading lever, back strap, head of the wedge and trigger guard bow are engraved with the late percussion vine style engraving pattern. This style is discussed in the book "The Book of Colt Engraving" by R.L. Wilson and there is a photograph of a Model 1860 Army revolver on page 147 with almost identical engraving as that on this revolver. There is a serpents head in the pattern on each side of the barrel lug, and the sides of the hammer have a wolfs head motif and the same vine style as the rest of the revolver. There is a shell design on the top of the back strap. The top barrel lug is marked "-ADDRESS COL. SAML COLT NEW-YORK U.S. AMERICA-", the left side of the frame is marked "COLTS/PATENT" in a downward arch and the left side trigger guard shoulder is marked "36 CAL". The cylinder is roll engraved with the Texas/Mexico naval battle scene and marked "COLTS PATENT No 318". The complete matching serial number is marked on the bottom of the barrel lug, frame, trigger guard and back strap, the partial serial number "0318" is marked on the cylinder pin , "318" on the wedge and the loading lever is un-numbered. The letter "E" is stamped above the serial number on the barrel lug and below the number on the frame, trigger guard and back strap. Standard brass cone front and hammer notch rear sights, the barrel and cylinder were blue, silver plated brass trigger guard and back strap, and casehardened remaining parts. The revolver is fitted with a varnished one-piece walnut grip. Complete in a walnut case with a brass shield inset in the lid and red velvet lining. The case has five compartments and contains a crossed revolvers/stars/eagle/cannon brass powder flask and two cavity iron bullet mold with "COLTS/PATENT" marked on the sprue cutter and "N.J" on the bottom of the left block.