When the Institute of Perception Research (Dutch abbreviation: IPO) celebrated its tenth anniversary in 1967 a plan was made to acquire a work of art that had the human senses as its theme. Soon the artist M.C. Escher became the favourite for an assignment. He did not have time to create a new work himself, but advised to have a tapestry woven based on the wood carving titled 'Omhulsel' (Wrapping). This carving depicts the eyes, ears and nose of Escher's wife Jetta. The tapestry was woven by Escher's friend Edmond de Cneudt, who had already made successful interpretations of Escher's work before.