A poor scan of the British Quad, which fortunately has the two moon artwork rather than the US regular one sheet artwork.

There are two Quad advances, both with the two moon image. The difference is mainly in placement of the text - between the moons or under the moons.

Additionally there is a regular Quad style. I have been unable to find a price difference between the two advances - they both obtain quite high prices.

One of the more beautiful Dune posters.