Pewter ammoniaphone
Pewter 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:
- A606886
- Materials:
- pewter
- type:
- ammoniaphones