This is the full 7-volume set in a like-new slipcase, all with $3.95 at the top of the front cover. ISBN 0-02-044280-7. Three of the volumes have some wear and rubbing and the other three are like-new as follows: Book 1: 72nd printing of the 1970 first edition, with cover rubbing and a closed tear at the bottom spine end, maybe read up to pages 17-19 which have dog ears at the top; Book 2: 59th printing of the 1970 first edition, like-new except for dog-ears at the top of the first 2 pages; Book 3: 57th printing, 1970 first, like-new; Book 4: 57th printing, 1970 first, like-new; Book 5: 55th printing of the 1970 first, like-new except for quite a bit of rubbing at the top spine end; Book 6: 51st printing, 1970 first edition, like-new; and Book 7: 55th printing of the 1970 first, like-new.