[ARCHITECTS]. AMMANN, Othmar (1879-1964). Autograph letter signed ("Othmar Ammann"), to Mrs. Krasilovsky, New York, 9 July 1964. 1 page, 8vo, on The Carlyle Hotel stationery. Ammann, the engineer of suspension bridges including the George Washington Bridge, the Golden Gate Bridge, and the Verrazano Narrows Bridge, thanks the recipient for her approval of the appearance of the George Washington Bridge: "The name of its designer is not important. Satisfaction of the public is what counts on a structure of this kind." -- LESSEPS, Ferdinand, Viconte de (1805-1894). Autograph quotation signed ("Ferd de Lesseps"), in French, n.p., 1884. 1 page, 8vo. Translated, reads: "Do what you have to, come what may." -- WRIGHT, Frank Lloyd (1867-1959). DS ("Frank Lloyd Wright"), n.p., n.d. 1 page, 4to, on the title-page from his 1932 work "An Autobiography." "Fred Pedifer from Frank Lloyd Wright. -- Together, 3 manuscripts.