Manufactured circa 1863-1865, this rifle is fitted with a 30 inch heavy octagon barrel marked "J. HARDER & SON / LOCK HAVEN PA" behind the rear sight. The top of the receiver is marked with the standard three line "SPENCER REPEATING / RIFLE CO. BOSTON, MASS / PAT'D MARCH 6, 1860" and the serial number is marked on the top rear of the receiver next to the hammer. Brass blade front and fixed dovetailed iron rear sights and mounted with a smooth walnut forearm and straight grip stock saddle ring bar base, sling swivels and carbine buttplate. Jacob Harder worked in Athens, Pa. from 1844 to 1860 and in Lock Haven, Pa. from 1860 to 1874. This rifle is photographed and described on page 150 of Roy M. Marcot's book SPENCER REPEATING FIREARMS.