ARP (Jean) - TAEUBER-ARP (Sophie). Set of 2 works: - POÈMES SANS PRÉNOMS. Grasse, 1941. - In-8, stapled, illustrated dust jacket. Rare first edition, printed at 150 copies (no. 72), of these poems by Jean Arp, illustrated with 3 full-page black compositions by Sophie Taeuber-Arp, one of which is repeated in full on the dust jacket. Minor soiling and tears with a slight loss to the dust jacket. - LE SIÈGE DE L'AIR. Poems 1915-1945 with eight duo-drawings by Arp and Taeuber-Arp and a foreword by Alain Gheerbrant. Paris: Vrille, Collection le Quadrangle, 1946. - In-8, paperback, filled cover. First edition printed at 1000 copies, illustrated with 8 full-page black compositions by Jean Arp and his wife Sophie Taeuber-Arp. It is the first volume of the collection "Le Quadrangle". One of 900 copies on white vellum (no. 535). Some soiling to the cover.