Harper & Brothers, NY & London, 1939 (copyright). 9 1/2" X 6 1/4". 1st Thus, 1st printing. "B-O" [February, 1939] - stated. The Mercury Shakespeare - "Twelfth Night". Edited for Reading and Arranged for Staging by Orson Wells and Roger Hill. With 25 page Introduction by Roger Hill. Illustrated throughout w/ line drawings, pen & ink sketches & stage directions. Olive green cloth, illustrated end-papers, black letters. Spine bumping/minor wear, hd & ft, corners. A small previous-owner's signature has been lined through w/ black marker, at the top back side of the front end-paper. No other markings. Pages are crisp & white w/o markings. Tightly bound, just a hair off-true. Both hinges are sound. 68 pages + a Repro of a page from Shakespeare's First Folio, with a Note by Brander Mathews following the Half-title Page.