Colt Lightening Rifle in 22 long.

The small-frame Colt Lightning (also referred to as "Second Model Colt Lightning") was the first rim fire rifle made by Colt and was manufactured between 1887 and 1904 as a plinking and gallery gun. Colt records indicate 89,912 were made, in .22 Short and .22 Long. this rifle is in .22 long. Barrel length was 24 in (61 cm) and the rifles had a blued finish, case-hardened hammer, and a walnut stock. This rifle has a 24" barrel. There is a piece of wood missing from the Pump grip that has been worn smooth from the last 60+ years of use. Also note the Colt Logo on the side of the receiver. See photos

Source was Wikipedia