If I'm not mistaken painted trade guns were offered late in the 19th century. I can't remember the boat's name or the exact year but someone found a bunch of crates with painted trade guns in them in a ship wreck. I remember reading they were painted 6 or 7 different colors, red, blue, green, white, black, yellow & maybe brown or orange. This was from the mid to late 1800's. Sorry I can't give exact dates or the boat's name. I just don't remember those details.