Box containing four x-ray negatives each with two frames showing various stages of tooth decay 1890-1920
Gas mask, rubber, metal fittings, British, 1914-18, with goggles. The mask and the filter are joined by a rubber connecting pipe with seperate goggles in a paper bag. British gas mask, 1914-1918 1914-1918
Gas mask, leather on cotton padding, celluloid eyepieces with protective metal, French, 1915 Gas mask 1915