A range of personal belongings of British physicist, Stephen Hawking, including his famous motorised red leather wheel chair and a copy of his dissertation thesis have been sold for $1 million in an auction. A motorised wheelchair that belonged to the physicist, who died in March and which was expected to fetch £15,000, went for nearly £300,000.
The proceeds will be donated to two charities - the Foundation of Stephen Hawking and the Association for the fight against motor neuron disease (Motor Neurone Disease Association).
In addition to Hawking's personal documents and items, an original production script for Stephen Hawking's final appearance on The Simpsons-in which he was portrayed as a disc jockey with gold chains and a Kangol hat-also sold 6,250 pounds ($8,157).
One of the theoretical physicist's wheelchairs was sold at auction smashing its estimate.
When Cambridge finally made Hawking's thesis available to download in 2017, it was viewed more than 60,000 times in 24 hours and public interest completely crashed the university's server.
The second most expensive item in the collection is the beloved physicist's former wheelchair, which raised $390,000.
Prof Hawking's book, A Brief History of Time, which he signed with a thumbprint in 1988, sold for £68,750, way above the £3,000 guide price.
Famed for his work exploring the origins of the universe, Hawking died in March at the age of 76 after spending most of his life confined to a wheelchair with motor neurone disease.. It featured pieces belonging to other celebrated thinkers including Albert Einstein and Charles Darwin.
Sophie Hopkins, specialist in manuscripts and archives at Christie's, said much of the collection was "incredibly iconic".
Professor Hawking's daughter Lucy said the sale gave "admirers of his work the chance to acquire a memento of our father's extraordinary life in the shape of a small selection of evocative and fascinating items".