Tin containing Ohropax-antiphones, hearing protection ear plugs, made by Max Negwar, Potsdam, Germany, 1910-1920, as used by personnel during the First World War. Tin containing Ohropax-antiphones 1910-1920
Plastic ear plugs, for hearing protection, with cord, made by E.A.R. Corporation, Indianapolis, USA, 1970-1980 Ear plugs 1970-1980
6 packets of Bilsom Propp-o-Plast and Propp industrial ear-plugs, of cotton wool and plastic, made in Sweden, 1975-1979 Propp-o-Plast and Propp industrial ear plugs 1975-1979
Tin containing Mallock Armstrong Ear Defenders, England, by Mallock-Armstrong, 2 Palmer Street, Westminster, London, England, 1916-1920, as supplied to British Forces during the First World War. Tin containing Mallock Armstrong Ear Defenders 1916-1920