The Three-Barrel Gun Co. Printed corner card on 1906 cover franked with 1903 2¢ tied by Moundsville, W. Va. machine cancel with attractive illustrated design on reverse showing Open Shotgun, Elk, Grouse & Detail of the "Three-Barrel", original enclosure on matching letterhead detailing the quality of the Three-Barrel Gun, tiny cover reduction at right, Very Fine, a rare example of this short lived Company. Estimate  $100 - 150. $0 (Image)