[20th & 21st centuries] Escher, M.C. (1898-1972). Vissen en kikkers Wood engr., 1949. Monogrammed in the block. 8.1 x 7.1 cm. On: front wrapper of the exhibition catalogue Zwitserse en Nederlandse grafische kunst. Gemeentemuseum 's Gravenhage, 12 November - 19 December 1949. 16 p. Sm. 8vo. Bool 364, not mentioning this catalogue.

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