Eduardo Newark Archivo fotográfico, contexto Instituto Di Tella (Photographic Archive, in a Di Tella... 1966-1968 (circa)
Hermann Nitsch Das Orgien Mysterien Theater. Frühe Aktionen: 20. Aktion 1966, 29. Aktion 1968, 30.... 1982
Dorothy Norman An American Place. Phone, Shadow and Stieglitz Equivalent in Background 1930 (circa) / Later print
Ocaña (José Pérez Ocaña) Archivo Ocaña (Domon-Jaccard-Beugnet) (Ocaña Archive [Domon-Jaccard-Beugnet]) 1969-1983
Hélio Oiticica, Leandro Katz Parangolé–Encuentros de Pamplona, 1972 (Parangolé–Pamplona Encounters, 1972) 1972
Hélio Oiticica, Neville D'Almeida 21/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Hélio Oiticica, Neville D'Almeida 32/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Hélio Oiticica, Neville D'Almeida 15/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Francisco Ontañón Matrimonio de Mobilette, Barcelona (Married Couple on Mobylette, Barcelona) 1954 / Later print, 1988