GERSHWIN, George. Porgy and Bess. An Opera in Three Acts. By George Gershwin. Libretto by Dubose Heyward. Lyrics by Dubose Heyward and Ira Gershwin. Production Directed by Rouben Mamoulian. New York: Random House, 1935. 4o. Color frontispiece and title-page illustrations by George Biddle. Original red hard-grained morocco, top edge gilt, mulberry paper endleaves (slight rubbing at spine ends, without publisher's slipcase). LIMITED EDITION, number 21 of 250 copies, SIGNED BY GEORGE AND IRA GERSHWIN, DUBOSE HEYWARD, AND ROUBEN MAMOULIAN. PRESENTATION COPY, BOLDLY INSCRIBED BY GEORGE GERSHWIN on preliminary endpage: "To Mrs. John Pratt My sincere good wishes, George Gershwin Oct. 16, 1935."