Here is a nice little historical piece -- a Disney produced image of Snow White signed by Adriana Caselotti, the voice of Snow White.
Caselotti (1916-1997) has a very distinctive voice. So distinctive in fact that (according to Wikipedia) Disney went to great lengths to make sure that she was not heard in the media of the time (see the notes from Wikipedia below). Frankly, I was saddened by the story. Her parents were opera singers and I'm sure she was thrilled at her "big break" into the movies -- only to have her career cut short. Ah, well... The same situation exists today with the folks that provide the very distinctive voices for cartoons like "The Simpsons," etc.
Note that Caselotti died in 1997 and this item was purchased in early 1998.
Adriana Caselotti Signed Picture
----- DATABASE NOTES -----
From “Snow White” (1937; 1998). A picture of Snow White signed by the voice of Snow White "Adriana Caselotti". Disney Certificate #1298000. [7.5”W x 9.5”H] Acquired 1998. SeqID-0367
Wikipedia: Adriana Caselotti (May 16, 1916 - January 19, 1997) was an American actress and singer. She was the voice of Snow White in Walt Disney's Snow White and the Seven Dwarfs. In the mid-1930s, Adriana Caselotti was hired by Walt Disney to help cast parts in his new film. She was blacklisted by Disney after the film-he did not want her to appear in any other films following Snow White and the Seven Dwarfs. Jack Benny specifically mentioned that he had asked Walt Disney for permission to use her on his radio show and was told, "I'm sorry, but that voice can't be used anywhere. I don't want to spoil the illusion of Snow White." The only other work she did following her premiere was an uncredited role in The Wizard of Oz, as the voice of Juliet during the Tin-Man's song, "If I Only had a Heart".
She did, however, do a few promotional spots for Snow White, signing memorabilia. In 1973, she appeared on an episode of The Julie Andrews Hour saluting the music of Walt Disney, singing I'm Wishing with Julie Andrews. She also made a guest appearance on the syndicated Mike Douglas show. Later in her life, she sold autographs. She also made an attempt at an opera career. In the early 1990s, when the Snow White Grotto at Disneyland was refurbished, Caselotti re-recorded "I'm Wishing" for the Snow White Wishing Well at the age of 75.