This model was introduced in 1863 based on Joseph Rider's patented double action design. This example is featured on page 71 of "The Guns of Remington" by Madaus and identified as manufactured c. 1869-1870. It features stunning engraving with a variety of scroll, wavy line and dot, entwining line, crosshatch, gadroon, and shell patterns along with a "Nimschke star" on the trigger guard bow. The engraving may be by famous 19th century Master Engraver L.D. Nimschke of New York. He engraved many of the finest Remington revolvers, and it may have been used as a factory exhibition or presentation piece. The matching Special Order Department serial number "117" is marked on the bottom of the barrel, trigger guard finial, left side of the butt, and inside the grips. The barrel has five-groove rifling, a half-moon blade front sight, and the three-line patent and address marking (second line weak, third line not visible). The butt has a removable "KM 216" inventory marking from the revolver's time in the well-known Karl Moldenhauer Collection sold back in 1980. The case has brown lining, an Eley cap tin, bird and dog pattern flask with a sloped spout, ball/bullet mold, and cleaning rod. Provenance: The Karl Moldenhauer Collection; The F. "Slim" Kohler Collection; The Elliott Burka "Mr. Remington" Estate Collection; Property of a Gentleman