Instruction leaflet concerning use of helmet gas mask, treated paper Instruction leaflet concerning use of helmet gas mask 1915
Inhaler, Rolland, for chloroform, by Mathieu of Paris, from Charriere Collin and Gentile collection, circa 1900 Inhaler, Rolland, for chloroform 1895-1905
2 instructions leaflet for use of helmet-type gas mask, treated paper 2 instructions leaflet for use of helmet-type gas mask 1915