A 1893 Martin guitar in a "coffin" case is unveiled during a press preview, Wednesday March 5, 2014 in New York. The guitar is among a collection of 265 extremely rare guitars from a single individual that will auction at Guernseys on April 2 and 3. (AP Photo/Bebeto Matthews)
The octobass is an extremely large bowed string instrument constructed about 1850 in Paris by the French luthier Jean Baptiste Vuillaume (1798-1875). It has four strings and is essentially a larger version of the double bass. The instrument was, in fact, so large that it took two musicians to play: one to bow and the other to control the "fingering", and was consequently never produced on a large scale or used much by composers.
This 18th-century violin makers shop by W. Foster Tracy, 1979, is a miniature built inside a full-size violin. It was on display at the Mini Time Machine Museum of Miniatures, Tucson, Arizona. All completed instruments and tools are fully functional in this model.
Stroh violin, or Stroviols, is a trade name for a horn-violin, or violinophone—a violin that amplifies its sound through a metal resonator and metal horns rather than a wooden sound box as on a standard violin. The instrument is named after its designer, John Matthias Augustus Stroh, an electrical engineer in London, who patented it in 1899.