Pierre Alechinsky (1927). Title: "Mais où sont-ils? Photolithograph. 1963. Signed in pencil and numbered 13/30. Similar works are in the collection of the following museum: S.M.A.K. in Ghent, Belgium (Stedelijk Museum voor Actuele Kunst), edition 27/90 as well as at MoMA and the MET in New York, number 85/90 and also at the Art Institute of Chicago, number 11/90. A rare work on the European market, these prints were sold at the time in New York, where he was exhibiting. Printed by Permild & Rosengreen, Copenhagen, Denmark. Size of work: 64 x 76.5 cm.