Appel K., the design for the poster for the 1981 exhibition in Sao Paulo, mixed media on paper, the back with 'Sao Paulo' in pencil, 69 x 99 cmAdded a poster for the mentioned exhibition: 'Bols Art, apresenta Karel Appel, A ess?ancia da pintura holandesa contemporanea, MASP, Sao Paulo 1981', lithograph, 68,5 x 97 cmExtra added a certificate by Sir Nieuwenhuizen Segaar.Ex-Modern and Contemporary Art Gallery Delaive in Amsterdam. Is possibly subject of the SABAM legislation / consult a€?Conditions of Salea€?