Frontier Crossings 45th SF Convention, limited ed, signed by Lessing, etc

Frontier Crossings: A Souvenir of the 45th World Science Fiction Convention, Conspiracy'87, held in Brighton. (London, Science Fiction Conventions, 1987). Copy number 46 of the signed limited edition of 135 copies. Tipped in limitation page with signatures of Doris Lessing, Ray Harryhausen, Arthur C. Clarke, Boris and Arkady Strugatsky, Brian Aldiss, Bob Shaw, etc. 227.5 x 20 cms. 190 pages, folding colour frontispiece (image of dustwrapper of ordinary edition), colour plates, adverts.