David Gainsborough-Roberts' unparalleled collection of Marilyn Monroe memorabilia is to sell on November 19.
It includes some of Monroe's most iconic dresses, including the cocktail dress she wore in Some Like it Hot (valued at $200,000-400,000) and a gown worn in There's No Business Like Show Business ($100,000-200,000).
The comprehensive collection features hundreds of Marilyn Monroe artefacts
The sale will also include a wealth of jewellery, clothing and other personal items - including her 1952 Detroit Free Press "New Faces" award.
Gainsborough-Roberts has been compiling his collection, one of the largest and most comprehensive on the planet, since the early 1990s.
The sale will be one of the most hotly anticipated this year.
Julien's executive director Martin Nolan comments: "More than half a century after her death, the world remains fascinated by Marilyn Monroe's beauty and talent.
"The amazing costumes, personal items, and archived materials will set a new standard for auctions of Marilyn Monroe artifacts."
Selected pieces from the collection will be exhibited aboard the Queen Mary 2 from August 9-16.
The record for a piece of movie memorabilia is held by the iconic "subway dress" Monroe wore in classic comedy The Seven Year Itch.
It made $5.5m in a 2011 sale at Profiles in History.
We have this incredible Marilyn Monroe signed newspaper clipping for sale.
Please sign up to our free newsletter to receive exciting news about movie memorabilia auctions.