What is information on Black Prince shotguns?

This brand name was marked on guns retailed by Shapleigh Hardware of St. Louis, MO. You can easily determine if your Black Prince was manufactured in Belgium. Look over the barrel(s) and action. If made there it will have one or more proofmarks to show that it passed government required standards. You may have to remove the barrels to find the marks, but look for an oval around the letters ELG or a symbol that looks like the Washington Monument. Other possibilities are that it was manufactured by Crescent Arms (1893-1930), a subsidiary of the H&D Folsom Co, or by J. Stevens Arms (1920-1940). If complete and functioning, a single shot would bring $50-$75 or a double barrel $125-$150.