First edition, first printing. Publisher's original black cloth with green titles to the upper board and spine, in the Irv Doktor illustrated dustwrapper. Top edge green. An excellent very near fine copy, the binding square and firm, the cloth bright and fresh. The contents are clean throughout and without inscriptions or stamps. The inner front hinge is cracked but holding. The topstain is bright and without fading. Complete with the lightly rubbed dustwrapper that is otherwise without fading, loss or tears. Not price-clipped ($3.95 to the upper front flap). A very attractive example. Nominated for the 1964 Hugo Award for Best Novel (which was won by Clifford D. Simak for 'Way Station'). Further details and images for any of the items listed are available on request. Lucius Books welcomes direct contact with our customers.