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
Gramophone Company trademark. The latter had been designed by Theodore Birnbaum, an executive of the Gramophone Company pressing plant in Hanover, Germany. While the general public came to refer to the records and company as "His Master's Voice" or "HMV" because of the prominence of the phrase on the record labels, The Gramophone Company was never officially known as the HMV or His Master's Voice Company. The painting "His Master's Voice" was made in the 1890s with the dog Nipper listening to an Edison cylinder phonograph. In 1899, Owen bought the painting from Francis Barraud, the artist, and asked him to paint