Hanna-Barbera's Where's Huddles publicity sheet, 1970
I am hoping to get some more accurate information on this book, but I will share what I know. I have wanted this spiral bound book for many years and it has always eluded me. I happened upon it on ebay recently and had to have it...so I snapped it up. It appears from the written introduction that the book was intended to be a character licensing and merchandising book from 1970. Inside the book is filled with color publicity photos of Hanna-Barbera shows and also includes black and white model sheets of each character from the shows highlighted.