.54 caliber. 37" pinned octagonal barrel. SN: NSN. Heavily oxidized metal, brass furniture, maple stock. Barrel weakly signed "GUMPF" at breech and may be shortened at the breech as well. Commercial percussion lock with simple scroll engraving is an apparent old replacement that fits poorly. Missing brass side plate, brass triggerguard and buttplate with four-piece brass matchbox. Forend shortened with one brass corrugated and one sheet brass thimble and an entry pipe. Fixed dovetail buckhorn rear sight and dovetailed blade front sight. Mr. Ness' notes indicate that the gun was obtained from a dealer who acquired it from the Outlaw Trading Post which had a large collection of Native American relics in its collection. An old black and white photo of the trading post is included in the folder with Mr. Ness' notes on the rifle.