Metal ammoniaphone
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LicenseMetal ammoniaphone, for voice cultivation, invented by Dr
Science Museum Group
© The Board of Trustees of the Science Museum
Metal ammoniaphone, for voice cultivation, invented by Dr. Carter Moffat, by Medical Battery Co. Ltd, 52 Oxford Street, London, England, 1871-1900.
Details
- Category:
- Therapeutics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A606887
- Materials:
- metal
- type:
- ammoniaphones
