THE SECRET OF THE MARTIAN MOONS                                by Donald A. Wollheim                                                                Tempo Books, First Paperback Printing, 1963                              Condition: Near Fine                                                                                                                                                                          First published in hardback in 1955, this was one of the collectible Winston Science Fiction titles for juveniles.  This is the first U. S. paperback edition.  Showing only faint wear, with price blacked out on front cover and some darkening on inside covers, this is an excellent copy, firmly bound with white pages and no markings.