Limited Edition, First Printing (Boni and Liverlight, 1924). One of only 1200 copies, this being number 856. Very rare; only one other on the market at present. Signed by O'Neill on the limitation page of volume one. Just about fine in publisher's original gray boards with blue cloth spine. Gilt facsimile signature on front boards. Internally fine with some pages unopened. Note that the title on the spine reads "Collected Plays of Eugene O'Neill. Octavo. 502pp. and 453pp. A wonderful set by one of the most famous oplaywrights of the 20th century.