.50 caliber. 44" pinned octagonal swamped barrel. SN: NSN. Dull brownish-gray patina on barrel, brass furniture, raised carved maple stock with sliding wood patchbox. Unmarked stepped flint lock with faceted and fenced, bridled iron pan and faceted flat swan neck cock. Top flat of barrels signed "A + Martin" in script. Attractive, neatly executed raised carving around breech plug tang, at the front and rear of the raised cheek rest and around the entry pipe. Allen Martin became a full-time rifle maker in 1989 and is a well known maker in the Contemporary Longrifle Association. From Martin's website, this appears to be what he refers to as a "Colonial Transitional SE PA Rifle".