Washington, D.C. National Aeronautics and Space Administration, 1970. First Edition. Quarto, 24 pages. In Very Good minus condition. White spine. Covers show mild shelf wear. Two-inch crease in bottom edge of front cover. Area of small black smudges on verso of back cover. Several stress lines along edge of spine. Small closed tear at base of spine. Light bumping/curling to fore corners. Covers and text block show light age toning. Pages are faintly creased along bottom edges, consistent with crease on front cover. Flat signed by Buzz Aldrin ("Buzz Aldrin") and Michael Collins ("Michael Collins") in blue and black ink, respectively, on first page. Shelved in Case 1 1/2. More