Retrouvius is a sensational architectural salvage and design business in London. You can find everything from reclaimed furniture and textiles to art and sculpture. Their motto is "bridging the gap between destruction and construction." Here they found several hundred of these test / misprint sheets on handmade paper from a printing press company. The sheets have been printed twice on each side so the text is barely legible but very beautiful. You could use it as wallpaper, drawer lining, wrapping paper, or paper chain making. I'm also including some shots from their design portfolio - fantastic.