Ackland's improved mouth gag

Made:
1896-1935 in London
Gag, mouth, Ackland's improved with parallel tooth plates

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Gag, mouth, Ackland's improved with parallel tooth plates
Science Museum Group
© The Board of Trustees of the Science Museum

Gag, mouth, Ackland's improved with parallel tooth plates, plated steel and rubber, by Alfred Cox, 108, New Bond Street, London, 1896-1935