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A poisonous gas attack on the Canadians in Flanders on April 24, 1915, during World War I

Colored chalks by Dutch painter, caricaturist, and editorial cartoonist Louis Raemaekers (1869-1956), ca. 1918. The print of this composition was "Drawn specially for the Graphic"; it was published in the Graphic on August 3, 1918. (Source: Wellcome Collection, London, UK. Wellcome Library no. 46016i. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)