Enlarge / This mysterious model appeared on eBay with little fanfare. (credit: eBay)

The first-ever model of Star Trek's USS Enterprise NCC-1701 has been returned to the Roddenberry family, according to an ABC News report.

The 3-foot model was used to shoot the pilot and credits scene for Star Trek's original series in the 1960s and was used occasionally for shots throughout the series. (Typically, a larger, 11-foot model was used for shots after the pilot.) The model also sat on series creator Gene Roddenberry's desk for several years.

It went missing in the late 1970s; historians and collectors believe it belonged to Roddenberry himself, that he lent it to a production house working on Star Trek: The Motion Picture, and that it was never returned. Its whereabouts were unknown until last fall, when a listing for a mysterious model of the Enterprise appeared on eBay.