Visual and written documentation, including miscellaneous correspondence and artists' statements, photographs and drawings relating to gallery installations, sculptural pieces, conceptual pieces, land art and performances. Series I, Werner Lippert correspondence: Questionnaire responses from artists on the role of chance in art (1972) and on drawing (1974); letters from artists to Lippert in his capacity as editor of the publication Extra; and other correspondence regarding plans for exhibitions and projects (1974-1977), including material from David Askevold and Salvo. Series II, Galleria Tosselli correspondence: Letters, drawings, and typescripts from artists concerning projects for installations, books and conceptual works, 1971-1989 (bulk 1971-1975). Most notable are substantial materials from Ian Wilson regarding his Discussion series, purchased in part by Toselli, including correspondence, contracts, and three typescript versions of the Nova Scotia College of Art and Design "Discussion" (Oct. 1971). Also, correspondence, annotated typescripts and drawings from Dan Graham. Series III, Prospect 69: Correspondence to Konrad Fischer, organizer of the exhibition, from artists and gallery owners, primarily regarding catalog production. Other materials consist of photographs, drawings, checklists and artist biographies, and a separate folder of Fluxus printed ephemera (1968-1978). Series IV, Miscellaneous drawings and typescripts: Two folders of original drawings by Minimalist and Conceptualist artists of works and installations, as well as a small quantity of typescripts. Series V, Miscellaneous photographs: Three folders of photos, some signed and/or annotated, of Mimimalist and Conceptualist art pieces and of performances.