Upon its arrival in Spain in September 1981,[REF] it was first displayed behind bomb-and bullet-proof glass screens[REF] at the Casón del Buen Retiro in Madrid in time to celebrate the centenary of Picasso's birth, 25 October [REF].
Basque nationalists have advocated that the picture should be brought to the Basque country,[REF] especially after the building of the Guggenheim Bilbao Museum.