this is a tough one/  all the first 3 0r 4 printings are marked first edition.  Its not the very first  because its supposed to have a $7.95 price on flap. and Page 50 would have the word "gypsies" whis is replaced with second edition and on...

This edition has NO PRICE on the flap which is odd .... but it is a 1974 edition  and has the giving tree ad on the back and the brown autograph inner cover... see pics for all this.  my guess is its a 4th printing from 1974 or its a mispring of the 2nd or 3rd printing and price was ommitted.  Ive consulted several book experts and all are baffled by it