Mälzel's panharmonicon in Boston, United States. Welte Michael Welte & Sons of Freiburg and New York manufactured orchestrions, organs and reproducing pianos, from 1832 until 1932. In 1883, Emil Welte (1841-1923), the eldest son of Michael, who had emigrated to the United States in 1865, patented the paper roll method (), the model of the later piano roll. Welte Philharmonic Organ From 1911 organs branded Welte Philharmonic-Organ were produced. The largest philharmonic organ ever built is at the Salomons Estate of the Markerstudy Group. This instrument was built in 1914 for Sir David Lionel Salomons to play not only rolls for the organ but also for his Welte Orchestrion No. 10 from about 1900, which he traded in for the organ. One of these organs can also be seen in the Scotty's Castle museum in Death Valley, where it is played regularly during museum tours. An organ built for the HMHS Britannic never made its way to Belfast due to the outbreak of the First World War. It can currently be heard playing in the Swiss National Museum in Seewen. See also Fairground organ Photoplayer The Orchestrion Project - An album by Pat Metheny References Herbert Jüttemann: Orchestrien aus dem Schwarzwald: Instrumente, Firmen und Fertigungsprogramme. Bergkirchen, 2004. (Orchestrions From The Black Forest). Q. David Bowers: Encyclopedia of automatic musical instruments: Cylinder music boxes, disc music boxes, piano players and player pianos... Incl. a dictionary of automatic musical instrument terms. Vestal, N. Y., the Vestal Press, 1988. Q. David. Bowers: Encyclopedia of Automatic Musical Instruments. . Lanham, Maryland, USA, Vestal Press, 1972. W. J. G. Ord-Hume: The Musical Box: A Guide for Collectors. . Atglen, Pennsylvania, USA, Schiffer Publishing, 1995. W. J. G. Ord-Hume: Barrel organ, the story of the mechanical organ and its repair, South Brunswick, Barnes, 1978. W. J. G. Ord-Hume: The musical box: a guide for collectors, including a guide to values, Atglen, Pennsylvania, USA, Schiffer Publishing. . W. J. G. Ord-Hume: Clockwork Music — An illustr. history of mechanical musical instruments from the musical box to the pianola, from automation lady virginal players to orchestrion, London, Allen and Unwin, 1973. . Arthur A. Reblitz: The Golden Age of Automatic Musical Instruments. . Woodsville, New Hampshire, USA, Mechanical Music Press, 2001. Arthur A. Reblitz: Treasures of Mechanical Music. . New York, the Vestal Press, 1981. Stanley Sadie (Ed. ): Musical Box. The New Grove Dictionary of Music and