WAR WINGS: Air Combat Stories for Boys #7.
Edition: Early printing.
New York: Grosset & Dunlap, (1937.). Hardcover - Air adventure story set during the Great War - Illustrated by J. Clemens Gretter. Lists to itself at the back of the book, but to #20 in the Hardy Boys series. Bound in bright lime green cloth with dark blue lettering and plane, orange and while illustrated endpapers, purple tinting to the top edge. 216 pp. plus 4 pp of publisher's ads.
Condition: Very good overall condition (a hint of fading to the spine, prev owner's name)