It’s a scan of a faded section of film that contains the original 77 crawl. In 1981, all of the technicolor prints had their openings spliced out and replaced with the new crawl containing “a new hope”. So the technicolor prints are useless for preserving that.
But ChainsawAsh has a copy of a scan of the 1981 crawl and will do a fork of 4k77 that contains this version.