What would a 1964 "The World Book" Year Book signed by John Glenn be worth?

Question

My dad was a chef and prepared dinner for John Glenn and his party. John Glenn then gave the book to my dad with message: Best regards to *****-and thanks for all the wonderful food-excellent- JH(looks like an A)Glenn. Jr

Answer 1

That's a pretty unique item. Hard to guess what a collector might pay for it. I'd think its value would be greater to your family than to anyone else, because it was personally inscribed to your dad. A lot of times collectors don't particularly like personal inscriptions.
Autograph World has two John Glenn autographs for sale; both are just photos of him with his signature. One is offered for $30.00 and the other for $65.00. There are some of his autographed photos listed on e-Bay for as little as $10.00.