| John Pfahl Monument Valley with Red String, Monument Valley, Utah 1977 (taken) 1981 (print) Dye transfer print 20 x 25.3 cm (image) 21.6 x 27.9 cm (sheet) National Gallery of Canada / Musée des beaux-arts du Canada Gift of Benjamin Greenberg, Ottawa, 1988, No. 30248.35, © John Pfahl LL/63739
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