Home Escher: the alchemist of impossible architectures Escher. Butterflies, 1950. Engraving

Escher. Butterflies, 1950. Engraving

Escher. Butterflies, 1950. Engraving

Hescher. House of Stairs, 1951. Lithography
Escher. Plane Filling II, 1957. Lithography, mm. 370 x 315