ANTIQUE MODEL 1878 MARLIN .38 CALIBER PISTOL: Pre 1898, serial number on inside tip up barrel 1251. Single action, spur trigger, tip up barrel. Action works fine. Typical Marlin markings on top and side of barrel. Approx. 80% original nickel finish remains. Hard rubber grips. Barrel measures 2 7/8'', overall 7''.