An extraordinary device created by John S. Holler in Germany around 1880 – ten years before the first ever Swiss Army knife.
100 accessories include blades, shears, scissors, an auger, a corkscrew, saws, a lancet, button hook, cigar cutter, pens and pencils, mirror, straight razor, piano tuning tool, a concealed compartment filled with miniature tools and a fully functioning .22 caliber five-shot pinfire revolver.