DUFY Raoul (1877-1953) Autograph letter signed Saint-Cyr, September 5, 1918, 3 pages in-8 in ink. (Discoloration of the paper). Signed autograph letter, probably addressed to one of the founders of the Editions de La Sirène, Richard Cantinelli, about two works by Dufy. At the date of this letter, Dufy was working on two books to be published by Éditions de La Sirène: a reprint of Guillaume Apollinaire's Bestiaire, published in 1919, and Stéphane Mallarmé's Madrigals, published in 1920. Dufy comments on the progress of Cantinelli's illustrations.