Baronlando said:

I didn't think there was a theatrical re-release in 85? I know there was one for Jedi, but by then New Hope was a home video monster.

There was a limited triple-bill in 1985 of all three films. It was very small.

The 70mm collectable cells were just taken from a regular print, I believe it was a new print struck just for that, though I could be mistaken. If you've seen those frames, they are faded and the colors are all off. They definitely aren't irreparable, you'd be able to correct them pretty easily, but you can see even in 1995 (or whenever they were made) the original materials were not in good shape. They were probably taken from the master 70mm IP from 1977--I'm assuming there was only one 70mm IP ever made, I seriously doubt there was a need to make more than one (was the film ever even re-released in 70mm? I think it might have been for the '78 re-release, but they might have just re-circulated existing prints, and since the 70mm screenings were limited to begin with, the 70mm IP ought to have been in good shape).