Well, there are many different posters and logos, is there something specific you're looking for?
I've updated my poster scan/photo collection, feel free to look there, also put up a few eps logos.
My SW posters (83mb)
SW .eps logos (2mb)
Supplement with ocp's posterbook scans.
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These Russian posters have to be some of the weirdest ones I've seen (and yes they're for Star Wars...):
