A violin of experimental design with cornerless body and flame-shaped sound holes. The right and left ribs are each of one piece, comprising only two total ribs for the instrument. Varnish is of a light golden color. In the early nineteenth century, there were widespread efforts to rationalize the violin according to modern acoustic principles. In 1817, François Chanot, influenced by the experiments of the physicist Savert, developed and patented a violin with a cornerless body. The Viennese luthier Johann Georg Stauffer took out a patent for a similar design in 1828.