black powder signal cannon View cart “Vintage Buffalo Copper/Brass Fire Extinguisher” has been added to your cart.$995.00Early 20th century black powder signal cannon. 14” long and 8” high black powder signal cannon quantity Add to cart Add to Wishlist Categories: Accessories, AmericanaRelated products Cast solid bronze Native American $895.00 Add to cart Advertising carved wood shoe $2,100.00 Add to cart signed Japanese green glass float 1 $495.00 Add to cart Rockingham glaze pottery $125.00 Add to cart