Colt Third Model Derringer, cased, . 41 RF., 2.25" barrel, serial number 10860, circa 1884-1885. Finished blue barrel with nickel frame. Has wood grips. These were produced from 1875-1912 and they made roughly 45,000 of them. Averaging out how many were made compared to how long they were made would put this piece around 1884. Dimensions: Case: 6"W x 4-1/2"D; Derringer: 5"L x 3"H This firearm is antique and does not require special licensing. Processing and shipping within the Continental US $45 . All FedEx packages are sent with Direct Signature Required and insured at full replacement value for a fee of 1.5% of the purchase price, unless buyer accepts complete liability in writing. Discounts given on combined lot shipping. Overall very fine in old wood case with moderate wear. Pistol has light finish scratches and marks.