M1915 gas mask with filter - repro 67,25 € | Nestof.pl
World war one: German soldiers in gas masks use a machine gun, France 1915, Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-074-0535 | agefotostock
1915 Gas Mask Set from Hessen Antique
Infanterie-Regiment Nr. 63 - Lederschutzemaske
Helmet-type gas mask, United Kingdom, 1915 | Wellcome Collection
A German soldier with an improvised gas mask in 1915. Photo: Berliner Verlag/Archiv Stock Photo - Alamy