On Sunday, a long-lost X-wing fighter used in the original 1977 "Star Wars" film fetched more than $3.13 million at auction.

It was Used in the filming of the final battle in “Star Wars: Episode IV – A New Hope” as the Rebel Alliance fight the Empire above the Death Star

According to Dallas-based auction house Heritage Auctions, the model was "the pinnacle of Star Wars artefacts to ever reach the market," before the sale.

The fighter is designated as the "Red Leader" of the squadron by having a single red stripe painted on each of its top two wings.

"The model is from the collection of the late Greg Jein, an Oscar- and Emmy-nominated miniature-maker with credits on 'Star Trek' and 'Close Encounters of the Third Kind.'"

Since leaving Industrial Light & Magic (a visual effects studio), this model has not been presented or altered, according to Kozicki, a Hollywood reporter.

The reporter also said, "For those of us that grew up in the ’70s or ‘80s, and those of us that work in visual effects, this model is as significant a find as the ruby red slippers or the Maltese Falcon."

A complete Stormtrooper suit, also from "A New Hope," sold for $645,000. Other "Star Wars" memorabilia from Jein's private collection were also up for auction on Sunday.