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Harder, Rolf. Souvenir Collection of the Postage Stamps of Canada, 1978-86. Lithograph, .a-.c: 11 x 8 3/8 x 1/8" (27.9 x 21.3 x 0.3 cm)
.d,.e: 11 x 8 1/2" (27.9 x 21.6 cm). Gift of the designer, 415.2007.1-5. (Photo: MoMA)