A "bloodstained" shirt worn by the late actor Heath Ledger in Brokeback Mountain is expected to fetch up to $US20,000 ($A26,254) at auction next month.
The Western-style shirt, which has patches of fake blood on it, featured in a fight scene with Ledger's co-star Jake Gyllenhaal in Ang Lee's Oscar-winning 2005 film.
It is being sold for the first time as part of a collection of shirts from the movie, which starred Ledger and Gyllenhaal as two cowboys who embark on a secret gay affair.
Ledger died in 2008 from an accidental overdose of prescription drugs at the age of 28.
The Hollywood Legends sale, hosted by Julien's Auctions, will feature a range of rare movie memorabilia including a bra owned by Marilyn Monroe, a dinner suit worn by Daniel Craig as James Bond and one of Steve McQueen's motorcycles.
The bra from Monroe's "personal professional wardrobe" has an estimated value of $US8,000 to $US10,000 ($A10,483 to $A13,104), an auction house spokeswoman said.
Monroe's blonde wig from her last completed film, The Misfits in 1961, is being sold for $US20,000 to $US40,000 ($A26,208 to $A52,416).
A Tom Ford-designed white dinner suit worn by Craig in 2015 film Spectre is expected to fetch $US50,000 to $US60,000 ($A65,520 to $A78,624) dollars.
McQueen's 1972 Honda CB450 motorcycle, which has a personalised number plate of the late star's name, is valued at $US50,000 to $US70,000 ($A65,520 to $A91,728).
The auction takes place in Los Angeles on April 29 - a day after Patrick Swayze's estate sells some of his belongings including his leather jacket from Dirty Dancing.
