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A true mirror of sound : Bettini micro-phonograph, micro-diaphragms for phonograph and graphophone, Bettini celebrated "opera musical records" and autograph-records of world famous artists (1900)

Bettini Phonograph Laboratory · New York : Bettini Phonograph Laboratory · leaf 7

An illustration from A true mirror of sound : Bettini micro-phonograph, micro-diaphragms for phonograph and graphophone, Bettini celebrated "opera musical records" and autograph-records of world famous artists, 1900, leaf 7
COMPLETE OUTFIT WITH EDISON HOME PHONOGRAPH. (For Recording and Reproducing) Edison Home Phono¬ graph (Class H) with Bettini Micro-Reproducer and Recorder (Nr h), Reproducing Horn No. i, Re¬ cording Horn and Folding Stand.$ 67.00 Same Outfit with Reproducer P instead of N and Repro¬ ducing Horn…

Trade catalogs · Sound recordings · Phonograph · Bettini Phonograph Laboratory

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

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