New York: G. P. Putnam's Sons, 1963. First Edition. Near Fine/Near Fine. First edition, first printing. Signed by Robert A. Heinlein on the title page. Bound in publisher's original black cloth stamped in green. Near Fine with faint soiling to cloth, light wear to spine ends. In a Near Fine unclipped dust jacket with light creasing and wear at the edges, thin band of offsetting to blindside from an old jacket protector. A lovely copy of the Hugo-nominated novel, signed by the author.