The only known billboard from 1937's Snow White has been consigned as the incredible highlight of Heritage Auctions' July 19-20 Vintage Movie Posters Signature Auction in Dallas.

The fact that the billboard was incomplete is part of the reason why it has survived

The 24-sheet poster has been subject to an immaculate restoration, and is now expected to sell for more than $10,000.

"Collectors knew this billboard was out there, but it was missing the bottom left panel," said Grey Smith, director of movie posters at Heritage.

"The decision was made to finally restore and preserve the poster and we worked closely with experts to ensure this rare piece of popular culture would survive well into the future."

Smith was the man behind the reproduction of the bottom left panel, which was completed using a rare press book for the film.

Snow White was the subject of one of the largest publicity campaigns in movie history, with hundreds of posters and banners produced. However, due to their age, few remain today, with the incompleteness of the billboard accounting for its survival.

"As is often the case with billboard posters, if they are missing a panel they will survive because bill posters would not use them if it was incomplete," Smith said.

"We are excited to play a role in preserving this rare find for another century. This billboard truly is rarest of the rare."

Paul Fraser Collectibles has some fantastic Disney memorabilia for sale.