New York: Charles Scribner's Sons, 1947. First Edition. Very Good/Very Good. First edition, first printing of the author's first published novel. Signed by Robert A. Heinlein on the title page. Bound in publisher's original black cloth stamped in green. Near Fine with light wear to spine ends, tiny spot to top of textblock edge and pages tanned. In a later state dust jacket which has been price clipped and over-stamped with a new price of $2.50, with toning and light wear, with a small repaired tear to the bottom of the rear flap fold.