This object was the top for a plexiglas box (subsequently destroyed) that held an Archive of correspondence purchased from Curtay by the Sackners. -- Source of annotation: Marvin or Ruth Sackner.

This object was the top for a plexiglas box (subsequently destroyed) that held an Archive of correspondence purchased from Curtay by the Sackners. -- Source of annotation: Marvin or Ruth Sackner.

Exhibition was curated by Francois Letaillieur. -- Source of annotation: Marvin or Ruth Sackner.

Exhibition was curated by Francois Letaillieur. -- Source of annotation: Marvin or Ruth Sackner.

Records telephone conversation with Ruth Sackner on page 4. -- Source of annotation: Marvin or Ruth Sackner.

The second section of this work, "Traite de Mathematiques" depicts black and white reproductions of 11 of Isou's Lettriste paintings whose content is primarily calligraphic markings and hieroglyphics. -- Source of annotation: Marvin or Ruth Sackner.

Isidore Isou contributes an essay written in 1968 which includes an "Introduction au Lettrisme," "La Photographie Ciselante," "La Photographie Lettriste et Hypergraphique," "La Photographie Supertemporelle," and "L'Avenir de la Photographie." The photographs mainly depict images captured by the camera from life or collage and subsequently treated with paint, ink, and/or scratched additions to the negative or the photograph itself. This copy is one of 20 reserved for the contributors which in this was Maurice Lemaitre. -- Source of annotation: Marvin or Ruth Sackner.

Most of the examples in this book are sound poetry compositions. -- Source of annotation: Marvin or Ruth Sackner.

Each contributor has an inked his/her fingerprint that follows the engraving. -- Source of annotation: Marvin or Ruth Sackner.