I have touched and thumbed through one of these - when I was six or seven years old. My father was employed in a family printing business as the art director and an illustrator drawing jigsaw puzzles for various companies. The company was sold in mid-80s and went out of business mid-90s. I have no idea what happened to this copy. He had so many amazing things in his office (like an original Voltron). He wasn't able to keep much of it when he was laid off when the company ran into trouble. I had completely forgotten about this and had no idea how rare it was. Thank you for posting this.