Q: When were the 5 x 9 pictures of Disney characters with the name Walt Disney printed across the bottom used as response to letters sent to Mr. Disney. There is a copyright mark with W.D.P. below it?            
                    
            Sherry, Lake Isabella, California        
        
            A: These pictures are known as fan cards, and there were dozens of them highlighting particular characters or films produced at different times beginning in the 1930s.