![Roberto Matta, Les quatre observateurs ou l'objet du dialogue, 1956, Lithograph on BFK Rives Paper for sale at Pamono Roberto Matta, Les quatre observateurs ou l'objet du dialogue, 1956, Lithograph on BFK Rives Paper for sale at Pamono](https://cdn20.pamono.com/p/g/1/0/1073654_16n1lhqeil/roberto-matta-les-quatre-observateurs-ou-l-objet-du-dialogue-1956-lithograph-on-bfk-rives-paper-1.jpg)
Roberto Matta, Les quatre observateurs ou l'objet du dialogue, 1956, Lithograph on BFK Rives Paper for sale at Pamono
![Roberto Matta, ROBERTO MATTA, lithograph extensively reworked with crayon and charcoal, 1965, on BFK Rives paper, signed in pencil. - Bukowskis Roberto Matta, ROBERTO MATTA, lithograph extensively reworked with crayon and charcoal, 1965, on BFK Rives paper, signed in pencil. - Bukowskis](https://d2mpxrrcad19ou.cloudfront.net/item_images/780380/9967089_bukobject.jpg)
Roberto Matta, ROBERTO MATTA, lithograph extensively reworked with crayon and charcoal, 1965, on BFK Rives paper, signed in pencil. - Bukowskis
![Roberto MATTA - Tribute to Dorothea Tanning, 1977 - Original Lithograph - Post War & Modern Art - Plazzart Roberto MATTA - Tribute to Dorothea Tanning, 1977 - Original Lithograph - Post War & Modern Art - Plazzart](https://www.plazzart.com/doc/plot/images/lots/20200719_mdv_492/p_20200416_153201.jpg)