‘Star Wars’ “Looks Terrible” in Screening of Long Lost Original 1977 Version
(www.hollywoodreporter.com)
There's a lovely ten minute video on the BFI YouTube channel talking about this lovely Technicolour print of the film.
I'm pretty sure the only reason everyone is calling this rare is because it doesn't have the "episode 4" title which was added later.
This is the same film, for people of a certain age, grew up with on TV and VHS. I don't understand why it's being sold as a version barely anyone has seen.
If you want a version no one has seen, in the Lucasfilm archives is a copy of Star Wars where the travelling shots in the Falcon and land speeder were achieved with rear projection. Just like the TV shows of the 70s and 80s when characters were talking in cars.