The Sampson-Matthews print program was the largest public art project in Canadian history. Launched at the start of the Second World War, it lasted 22 years and cost tens of millions of dollars. The exquisite, oversize silkscreens were based on designs by a who's who of Canada's greatest artists, including David Milne, Emily Carr, B.C. Binning, Lawren Harris and A.Y. Jackson, Tom Thomson, J.W. Morrice and Clarence Gagnon. The idea that launched the project was simple. Get Canada's best painters to contribute to the war effort by creating new works, guided by the National Gallery. Toronto printer Sampson-Matthews would turn these into high-quality silkscreens, which would then be sent to every military unit and government office from Britain to Ceylon. At the same time, target the home front: schools, libraries, banks, insurance companies. By 1943, the prints were hanging in Eaton's store windows from coast to coast. The images were so popular that the program went into overdrive after the war. Dozens more artworks were commissioned and tens of thousands more printed. The program was a grandiose exercise in art education, a coming together of culture, commerce and patriotism that only a world war could ever create.