About 500 monoblocks were made through 1935, with only ten guns shipped after that.Ībove information is from the book, "Dr. The third and final model has no side rib and is referred to as a "monoblock".
The second variation has strengthened hinges and serial numbers that begin with the letter "L", These were marketed as the Model 95.
Starting in 1922, all Remington guns were stamped with a two letter date code for the shipping month and year. After the merger between Remington and UMC Cartridge Co in 1910, beginning in 1911, the fourth models were marked "REMINGTON-U.M.C.CO.ILION,N.Y." and were serialized. The first variation of the third models were serialized, but all other variations were marked in batches, not with serial numbers. The variations are determined by the font style. The third model was made in 6 variations, all marked, ""REMINGTON ARMS CO, ILION NY". The company name was changed to Remington Arms Co., and beginning in 1888 all Remington guns were marked with that name. In 1886 Remington went bankrupt and in 1888 was bought by a consortium of Hartley&Graham, and Winchester Arms Co. The second model is marked on the top rib in two lines, "E REMINGTON & SONS ILION NY," "ELLIOTS PATENT DEC 12 1865". The third variation has an extractor on the left side and is referred to as a "extractor cut." The fourth variation is marked, "REMINGTONS ILLION NY" and is very rare. The second variation is marked the same without the "manufactured by". REMINGTON & SONS" on one side rib, and "ELLIOTS PATENT DEC 12 1865" on the other side rib. The first model, first variation is only the first 100 made and were marked "MANUFACTURED BY E.
There are four models with several variations. Remington manufactured more than 150,000 over-under double-barreled derringers from 1866 until the end of their production in 1935. At this time the Double Derringer became the Model 95. ILION, N.Y." In 1921, Remington adapted a number system for every model. In 1911 the marking was changed to, "REMINGTON ARMS - U.M.C. ILION N.Y." in 1888, this is the Third Model. The barrel rib top inscription changed to "REMINGTON ARMS CO. 12th 1865." This is the Second Model, and is called the "Two Line," by collectors. After about serial 2400, the marking was put on the top of the barrels in two lines. About serial 1600, an extractor was installed on the left side, between the barrels. There are a few DDs with the marking, "Remington's Ilion NY USA" but there is no known reason for this marking. ) After the first 100, the "manufactured by" was no longer stamped between the barrels. Patent 51,440, "Improvement in Many-Barreled Fire-Arms", which describes the key features of the original design in some detail. (This refers to firearms inventor William H. 12, 1865" stamped on the left side of the barrel. REMINGTON & SONS, ILION, N.Y." stamped on the right side of the barrel and "ELLIOT'S PATENT DEC. The first 100 Double Derringers have "Manufactured by E. Production prior to 1869 had no extractors. The Remington Double Derringer was made from 1866 to 1935.