Manufactured circa 1871-1881. This carbine has no visible marker's markings. The action has the Whitney style hammer and breechblock pins with extensions secured by a screw unlike the Remingtons which had a washer. The barrel has three groove rifling, a triangular blade front sight, a two leaf rear sight graduated from 100 to 500 yards, and "45-" at the breech. The lower tang has the serial number, and the upper tang is blank. Oval script "ESA" (Erskine S. Allin) inspection cartouche stamped on the left stock wrist.