black powder signal cannon View cart “signed Japanese green glass float 1” 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 Turn of the century fire helmet $995.00 Add to cart Advertising carved wood shoe $2,100.00 Add to cart Period mirror with reverse ships painting $225.00 Add to cart signed Japanese green glass float $495.00 Add to cart