New York, 28 February 1974 - Institutional correspondence A letter from the Guerrilla Art Action Group to Richard Oldenburg
New York, 6 January 1960 - Management of reproduction rights A letter from the Spanish Refugee Aid, Inc. to Pablo Picasso
New York, 5 March 1974 - Institutional correspondence Letter-poem by the Guerrilla Art Action Group send to Franco
Basque Country, ca. 1975–1980 - Photograph Mural with the abbreviation of the Communist Movement of the Basque Country (MCE)
Biscay, 1980 - Photograph Mural of the 60th anniversary of the PCE (the Communist Party of the Basque Country)