Decorah Altar

1935–1942

Medium: watercolor and graphite on paperboard
Dimensions: overall: 68.9 x 55.5 cm (27 1/8 x 21 7/8 in.) Original IAD Object: 10'6" wide; 12'6" high
Museum: National Gallery of Art, Washington, DC, US

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United States Geological Survey, 1938

United States Geological Survey, 1935

United States Geological Survey, 1935

United States Geological Survey, 1935

United States Geological Survey, 1936