granada publishing group panther books imprint first printing, first uk p/b edition
cover art unsigned, uncredited of a crescent-lit world apparently illuminated by a fairly distant red star;
a yellow flash across the bottom fly corner bears in red "his towering bestseller of the first new world"
cover price £1.25
frederik pohl's first name is mis-spelled "frederick" on the title page (this comment is from another edition of this book)