This is a very fine condition, untouched gun from a famous gun-making family. Gideon worked in Lewisburg, Pa. and this rifle appears to be his work. The gun is 52-1/4" overall with a 42-1/2" barrel. It's roughly 60 caliber smooth-bore and other than a re-conversion of its "Bird" lock, it appears to be untouched with no repairs. This is a fine, big, beautiful gun.