The lightsaber is especially significant because it is used in the dramatic duel where Darth Vader tells Luke Skywalker he is his father.
It has now been sold by Heritage Auctions for $4.9 million, equivalent to 49 million kronor.
That is a new sales record for Star Wars film memorabilia, according to the auction house.
In July, Luke Skywalker’s lightsaber and the prosthetic hand used in the same scene sold for around 36 million kronor.
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