Signed book: Rocket-Jet and Missile Engineering by Constantin Paul Lent. First edition, first printing. NY: Pen-Ink Publishing Company, 1958. Hardcover, 8.75 x 11.25. The volume, copiously illustrated by the author, covers numerous aspects of rocket and missile engineering, portraying early rocket experiments, German V-1 and V-2 rockets, space suits and satellites, military rockets, and more. Several of Constantin P. Lent's patent applications are reproduced at the end of the book. In very good condition, with ex-library markings ("Withdrawn from JPL Library"), and light sunning and wear to boards and spine.