PHILOSOPHES. 3 letters (including 2 L.A.S.) and a manuscript a.s., addressed to J. Tromeur. Gilles Deleuze, Jean-François Lyotard (2, including a manuscript a.s., Plusieurs manières, un seul enjeu, on Tromeur's work, 1980, 8p.), Hubert Reeves (l.s.). Attached is a document on parchment from 1612 (one corner missing), plus 2 photocopies by Georges Duhamel.