black powder signal cannon View cart “signed Japanese green glass float” 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 Early American butter churn $250.00 Add to cart Brass cigar cutter $650.00 Add to cart Cast solid bronze Native American $895.00 Add to cart Brass ship’s porthole $425.00 Add to cart