O'NEILL, Eugene (1888-1953). Marco Millions. New York: Boni & Liveright, 1927. With original slipcase. LIMITED EDITION, number 303 of 450 copies signed by O'Neill. -- Trade issue. With original printed dust jacket. -- Beyond the Horizon. New York: Boni & Liveright, 1920. -- The Emperor Jones. Cincinnati: Stewart Kidd, 1921. Original wrappers. -- The Emperor Jones. Diff'rent. The Straw. New York: Boni & Liveright, 1921. -- All God's Chillun Got Wings and Welded. New York: Boni & Liveright, 1924. -- Dynamo. New York: Horace Liveright, 1929. Original printed dust jacket. Fine copy. -- Mourning Becomes Electra. New York: Horace Liveright, 1931. Original printed pictorial dust jacket. -- Days Without End. New York: Random House, 1934. Original printed pictorial dust jacket. Together 9 volumes, all FIRST EDITIONS, 12o and 8o, original bindings. Provenance: Frederick W. Skiff (bookplates in some); Estelle Doheny (paper bookplates). (9)