Metal ammoniaphone, for voice cultivation, in carton, invented by Dr. Carter Moffat, by the Medical Battery Co. Ltd, 205 Regent Street, London, England, 1871-1900.
Details
- Category:
- Therapeutics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A175918
- Materials:
- paper and ammoniaphone, pewter
- Measurements:
-
length 635 mm
diameter 27 mm
- type:
- ammoniaphones
- credit:
- Glendining
