Berliner Gramophone formulations remained the standard disc record material until the first vinyl records – initially made only for radio use and other special applications – were introduced in the 1930s. Beginning in 1896, Berliner's gramophones were made by Philadelphia-based machinist Eldridge Johnson, who added a spring motor to drive the previously hand-rotated turntable. Berliner also opened an office in New York City, staffed by Frank Seaman and O. D. LaDow and organized as the National Gramophone Company. Master recordings were made onto zinc plates, which were then electroplated and a negative-image "mother" made from them to stamp discs. A major reversal
Fonotipia Records Fonotipia Records Fonotipia Records, or Dischi Fonotipia, was an Italian gramophone record label established in 1904 with a charter to record the art of leading opera singers and some other celebrity musicians, chiefly violinists. Fonotipia continued to operate into the electrical recording era, which commenced in 1925–26, by which time the company had been absorbed into Odeon records. The records made by Fonotipia are prized by collectors and musicologists for their high technical quality, and for the high artistic merit and interest of much of what was captured for posterity. The Fonotipia catalogues were reconstructed, so far as then possible,