By 1943, Japan controlled up to three-quarters of the world's supply of crude rubber - making recycling essential if the Allied war effort was to continue.
Canada, Department of Munitions and Supply, Scrap Rubber – A Vital Need, An Appeal for Help (Toronto, n.d.)
Ley and Lois Smith War, Memory and Popular Culture Research Collection - The University of Western Ontario - London, Ontario
View PDF:Scrap rubber.pdf
leaflet, 4 pages, 13.9cm x 7.7cm