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Mallock-Armstrong ear defenders, London, England, 1914-1918

1914-1918
Ear defenders, for use with safety helmet, orange plastic, as used by TML workers, 'No Noise', by Hellberg Protection AB, Sweden, c. 1990.

TML ear defenders

1990
Two sets of ear defenders, one 'ERDE' and one 'Maxiguard' branded, developed at the Institute of Community Medicine.

Two sets of ear defenders

"Maxiguard" ear defenders, c1970, type developed at the Institute of Community Medicine.

"Maxiguard" ear defenders

Single ear defender, the other is missing, made of vulcanite, in tin box with instructions, 1915 pattern, as supplied to the Royal Navy and also used by other British forces during the First World War, made by Mallock-Armstrong, 5 Carteret Street, Westminster, London, England.

Ear defenders

1915-1918
Pair of 'Sonovalve' ear defenders, supplied by Racal Safety Ltd. and made by Amplivox Limited, Oxfordshire, England, 1978-1983

Pair of 'Sonovalve' ear defenders

1978-1983
ERDE fenders, ear defenders, c1971, type developed at the Institute of Community Medicine.

ERDE fenders

Pair of Mallock Armstrong ear defenders, 1982

Pair of Mallock Armstrong ear defenders, 1982

1982