The US Postal first day of issue for the Snow White and Dopey 37¢ stamp occurred on June 30, 2005. It was part of "The Art of Disney: Celebration" series. The stamps were designed by the Disney team which included artist Peter Emmerich and creative director Dave Pacheco, along with Postal Service art director Terrence McCaffrey.
It started in 2004 when the Post Office issued "The Art of Disney: Friendship" 37¢ stamps. It was the first in the series and featured Mickey Mouse and Goofy, Bambi and Thumper, Pinocchio and Jiminy Cricket, and Simba and Mufasa.
Then in 2005, "The Art of Disney: Celebration" series was released with Mickey Mouse and Pluto, Alice and the Mad Hatter, Ariel and Flounder, and Snow White and Dopey.
The third series, "The Art of Disney: Romance" came out in 2006. The 39¢ stamps included Mickey Mouse and Minnie, Lady and the Tramp, Belle and the Beast, and Cinderella and Prince Charming.
The fourth series was "The Art of Disney: Magic" from 2007. The price of first class stamps rose to 41¢.
In 2008,"The Art of Disney: Imagination" was the final release in the collection. Now up to 42¢ stamps.
The USPS also issued Snow White and Dopey postcards, silver medallion, jigsaw puzzle, lithographs, pins, and a magnet.