This rare lithograph's authenticity has been verified by The M.C. Escher Company B.V. Nieuwstraat 6. 3743 BL Baarn The Netherlands
Maurits Cornelis Escher (June 1898 – March 1972) was a Dutch graphic artist who made mathematically inspired woodcuts, lithographs, and mezzotints.
Escher' observations about this 1955 work:
Three little houses stand near one another, each under a cross-vaulted roof. We have an exterior view of the left-hand house, an interior view of the right-hand one, and either an exterior or interior view of the one in the middle, according to choice. There are several similar inversions illustrated in this print; let us describe one of them. Two boys are seen, [each] playing a flute. The one on the left is looking down through a window onto the roof of the middle house; if he were to climb out of the window he could stand on the roof. And then if he were to jump down in front of it he would land up one story lower, on the dark colored floor before the house. And yet, the right-hand flute player who regards that same cross-vault as a roof curving above his head, will find, if he climbs out of his windows, that there is no floor for him to land on, only a fathomless abyss.
Escher's art became popular, both among scientists and mathematicians, and in popular culture. Apart from being used in a variety of technical papers, his work has appeared on the covers of many books and albums. He featured as one of the major inspirations of Douglas Hofstadter's 1979 book Gödel, Escher, Bach.