Roth & Junius Stroh Violin /Stroviol New Edition 4/4, made in Europe. The Stroh violin (developped by Johannes Matthias Augustus Stroh 1828-1914) is a combination of a violin and a trumpet which works on the gramophone principle. The bridge rests on a resonant membrane that picks up vibrations through a thin rod (needle), which has the role of conducting mechanical vibrations, so the resulting sound is amplified inside the trumpet. Maple bridge, maple neck and body, maple chinrest, maple shoulder-rest, ebony fingerboard, ebony tailpiece, ebony endpin, Rubner guitar-like metal machines for comfortable fine-tuning, brass-trumpet, steel strings, comes with soft bag.