The “bowcaster” used by Chewbacca in the original Star Wars trilogy has sold for more than $750,000 at auction – while the medal given to Luke Skywalker at the end of “A New Hope” has fetched over $370,000.

“Chewie’s” weapon, which featured in all of the first three Star Wars films between 1977 and 1983, sold for far more than its estimate of between $250,000 and $500,000 (£193,203 to £386,407).

The item sold for $768,600 (£593,985) and is a real Horton crossbow, which was…