From Thorr's SE Trailer Thread:

TK-949 said:
frank678 said:

Saw this on ebay , didn't know if it would be of interest to anyone here:

http://www.ebay.com/itm/STAR-WARS-1977-35mm-Film-Trailer-Reel-Rare-Completely-Original-Film-Cells-/130583549493?pt=UK_DVD_Film_TV_OtherFormats_GL&hash=item1e6762d635

Looks interesting. It seems to be one of the re-release Trailers, since the early trailers didn't have the TIE-Fighter window.
The FX-Shots in these trailers are almost always the complete shot of that scene, so that might be interesting for our 35mm guys as well.