‘Luke Skywalker’s Original Star Wars Lightsaber Is Going up for Auction’…
http://fortune.com/2018/12/03/star-wars-luke-skywalker-lightsaber-auction-hollywood/
^ interestingly, Mark Hamill issued a ‘buyer beware’ type message on his twitter page:-
https://twitter.com/HamillHimself/status/1069963379182309382 - ‘Be Advised-There was no ONE lightsaber I used in the films, but many, MANY, both for myself & my stunt-double. Multiple duplicate back-up props are commonplace during production-When the handle ridges were cutting my hands, they even made a few w/ soft sponge ridges! #BuyerBeware’
Also worth checking out Roger J Phillips twitter page too - https://twitter.com/roger_christian - some fascinating info and pics from his time on Star Wars as Set Decorator & maker of lightsabers (and his work on other projects too) - https://www.imdb.com/name/nm0002337/