| Pierre Gaudard Sigma Gold Mine, Val-d'Or, Quebec 1969 Gelatin silver print 30.5 x 20.4 cm (image) 35.4 x 27.8 cm (sheet) National Gallery of Canada / Musée des beaux-arts du Canada Purchased 1971, Canadian Museum of Contemporary Photography (no. 71-2185) LL/63685
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