The authorized edition published in the 1960's by Ballantine with
Tolkien's blessings, although he complained about the artwork, and we
can certainly understand his not caring for the "lions and emus" and
the "tree with bulbous
fruit" etc. These are sometimes referred to as the "Hippie Edition"
with their far out and groovy artwork by Barbara Remington. - thanks to Goldberry for this tidbit. With it, I am also including an image of the original box the set was marketed in.