From vintage posters to action figures, Star Wars collectables are up for grabs in an online auction, days ahead of the release of the sci-fi saga's highly-anticipated ninth chapter.

"Star Wars Online" features more than 100 items dating back decades, with prices ranging from £100 to £60,000, according to auction house Sotheby's.

Among the memorabilia is a prototype Imperial Storm trooper helmet from 1976, which has an estimated price tag of £30,000 - £60,000. A toy shop display of "The Empire Strikes Back" figures and Millennium Falcon ship is priced at £7,000 - 10,000.

A 1976 poster designed to promote the first "Star Wars" film "A New Hope" and signed by actor Mark Hamill has a price tag of £5,000 - £8,000.

It "has taken over a year to put together pieces from all over the world, combining film, original film posters, original concept, art works, props, toys," Bruce Marchant, film poster consultant for Sotheby's, told Reuters.

The online sale began last week and runs until December 13. The film, "The Rise of Skywalker", begins its cinema roll-out from December 18.