A TIE fighter pilot's helmet from Star Wars: A New Hope is valued at �50,000-70,000 ($66,222-92,711) ahead of the Prop Store's sale in London.
The auction will take place at the BFI IMAX in partnership with ODEON on September 27.
The helmet is made from tough thermal resin
The lot is one of 14 originals produced by Andrew Ainsworth at Shepperton Design Studios in 1976.
Of these, only 12 were brought to the studio.
It's constructed from thermal resin, making it relatively tough.
In addition to the usual stresses of filming, some of the helmets were later reused in the other films in the trilogy.
Therefore this is one of the rare few to remain in original condition.
Other exciting offerings include Batman's batsuit from the Dark Knight Rises, which carries an estimate of �40,000-60,000 ($52,996-79,494).
Designed by costumier Lindy Hemming, the suit is comprised of more than 100 individual pieces.
The under suit is constructed from polyester mesh, with urethane and carbon fibre panels forming the armour plating.
The movie was the final instalment in Christopher Nolan's acclaimed Dark Knight Trilogy and grossed well over $1bn worldwide.
Harry Potter's Hogwarts acceptance letter from Harry Potter and the Philosopher's Stone (2001) will also feature, with an estimate of �3,000-5,000 ($3,973-6,622).
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