Envelope: Louis E. Stilz & Bro., Manufacturers of Society & Military Goods, Philadelphia, Pennsylvania, 1905 Envelope from Louis E. Stilz & Bro., manufacturers of society and military goods, costumes, armor, flags, and banners, located at 153 & 155 North Fourth Street, Philadelphia, Pennsylvania. Dated circa 1905. Features a depiction of a knight on the cover and includes a broadside for "Knights of the Golden Eagle" caps.