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Dr. Carter Moffat's amoniaphone for voice cultivation

1871-1900

Metal ammoniaphone

1871-1900

Cardboard box for ammoniaphone

1871-1900

Pewter ammoniaphone

1871-1900

Metal ammoniaphone

1871-1900
Metal ammoniaphone with original cardboard packaging. For voice cultivation, invented, by Dr. Carter Moffat, by Medical Battery Co., London, 1871-1900

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

1871-1900
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.

Metal ammoniaphone

1871-1900