.58 caliber. 36" three-stage pinned octagon to round barrel. SN: NSN. Lightly oxidized metal, brass and iron furniture, full-length walnut stock. Percussion lock marked with the "{Tombstone-Fox/EB}" Hudson's Bay Company trademark at the tail and in three lines forward of the hammer "BARNETT/LONDON/1887". Barrel with London commercial proof marks and a "24" gauge mark, indicating .58 caliber. Three-screw brass serpent side plate, oversized iron triggerguard, flat brass buttplate, raised carved aprons at tang and rear of lock mortise and rear of counterpane. Corrugated brass thimbles retain an old brass tipped wood ramrod. A nice example of a late production trade gun from the closing days of the "old west" period.