About a dozen years ago I had the honor of spending time at a cocktail party with Bob Gurr (the man knows how to mix a cocktail, trust me, ever heard of a Gurrtini?).
He was so kind and amused me by answering some fanboy questions and signing this October 1961 special "in park only" ticket with his Monorail across the front. This man is a living ledged and does amazing podcasts!!! (https://www.youtube.com/@FandomProductionsStudios/videos).
Walt's stylized signature goes nicely with Bob's
These ticket books could only be purchased inside the park and of course did not include admission to the park itself. Most of these books are empty now as someone who bough these had immediate plans for more attractions, this book has just the one ticket left.