Quadratic, Olaf Stapledon & Murray Leinster
First edition, first printing of this omnibus of Stapledon's 'Worlds of Wonder' and Leinster's 'Murder Madness', created by combining unbound sheets from the publisher's previous editions of the two volumes. Limited to 300 copies.
Los Angeles: Fantasy Publishing Co., 1953. An about near fine in a very good, unclipped dust jacket. Binding is tight and sturdy, a very minor instance of discoloration to front board. Toning to second half of text block, else internally clean with no markings. Jacket shows light shelfwear with a small chip to spine crown, creasing to front panel and spine, protected in archival mylar. Very scarce.