Ammoniaphone, 'for voice cultivation by chemical means', English, 1871-1900.

Ammoniaphone, 'for voice cultivation by chemical means', English, 1871-1900.
Metal ammoniaphone, for voice cultivation, in box, invented by Dr. Carter Moffat, manufactured by Medical Battery Co., London
 
Currently on display in:
Making the Modern World
Year made :
1871-1900
Inventory number :
A606884