The then-new Star Wars Special Editions were issued worldwide on home video in 1997. In the UK the films were issued in both Widescreen and Pan&Scan editions, and you could get them either separately or as boxed sets.
The widescreen editions presented the films in their full 2.35:1 aspect ratio, with original English Hi-Fi audio. The audio mix of the Special Edition now contains C-3PO's "tractor beam" line as standard.
At the beginning of each tape you'll find the short "Making of..." featurettes that accompanied the Special Editions on just about every release.
The cassettes sometimes have an additional ratings sticker on the front, sometimes not. I have two copies of the first Star Wars, and one has the ratings sticker, while the other does not. One of my copies of Star Wars came with a 20-page brochure for other Star Wars merchandise.
These releases use unique boxes matching the silver trim of the artwork inlays, including an embossed 20th. Century Fox logo on the inside lid. The promotional sticker on the front of the case has warped the plastic on all my copies. In hindsight I should have removed that sticker.