ARDENTE CORONATION HEARING AID, 1937
A small earpiece is connected to a microphone and battery box via a lead, The microphone fits into a top pocket.
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The Ardent company was formed in 1919 and sold hearing aids imported from the continent. The company soon started to manufacture their own and the name 'Ardente' was first used by them in 1937/9. They also made alarm systems.
Bruce Hammond Collection