New York: William Morrow, 1937. Uncorrected Proof, preceding the First Edition. Good to Very Good in publisher's self-wrappers, with a publication date of April 12, 1937 and projected price of $2.00 rubber-stamped on the front endpaper. Spine lean and roll, vertical creasing to the spine panel, small stain to the fore-edge of the first couple of leaves. A presentable copy of the earliest state of the tenth Perry Mason mystery.