Collection of autograph letters: - Paul Valéry, in Pau, a half-page handwritten, signed letter requesting a visit, - Jacinto Benavente to Pierre d’Arcangues in San Sebastián, a signed, handwritten letter of thanks, half a page long, - Roger Caillois to Guy d’Arcangues, a signed, handwritten letter commenting on works, half a page long, dated April 29, 1977, - W. J. Manghan to Saint-Jean-Cap-Ferrat, a typed and signed letter of thanks, dated April 26, 1951, - A signed handwritten letter from Jules Supervielle to Guy d’Arcangues regarding *Eugenia*, dated January 27, 1959. (Stains, creases). This lot comes from the red study at the Château d’Arcangues.