MATTA Roberto, MICHAUX Henri. LIBERATED RIGHTS. Poem by Henri Michaux on fourteen engravings by [Roberto]. Sebastian Matta. Paris, Georges Visat, 1971: folio (430 x 320 mm) of [20] pp. in sheets, in a publisher's slipcase. First edition of this poem inspired by Matta's engravings, the copperplates of which date from 1956. Unique edition of 125 copies on Arches vellum, signed by the author on the colophon, including a suite of 14 etchings signed on Arches and a second suite of 14 etchings signed on japon, all justified EA. A very fine copy.