Ammoniaphone, 'for voice cultivation by chemical means', English, 1871-1900.
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Picture Number:10284531 Credit:Science Museum/Science & Society Picture Library
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Description:
Metal ammoniaphone, for voice cultivation, in box, invented by Dr. Carter Moffat, manufactured by Medical Battery Co., London
Object Number: A606884 Date Made: 1871-1900 Maker: Medical Battery Co. Ltd Place of Production: World > Europe > United Kingdom > England > London In Collection of: Science Museum Subject(s) > Medicine & Health > Therapeutics
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