A WHEELCHAIR used by natural Stephen Hawking has sold at auction for more than $ 540,600 while a copy of his doctoral dissertation gathered brought over $ 1.05 million, Christie's British auction this week revealed.
The red leather chair was used by the physicist as it was paralyzed by motor neurone disease and was originally expected to raise $ 26,900.
Revenue from the sale of the wheelchair will be distributed between two charities, the Stephen Hawking Foundation and the Motor Neurone Disease Association.
The 1969 Cambridge University dissertation, Prof Hawking, "Properties of Expanding Universes," sold over $ 1.05 million, more than three times more than its ex-ante estimate at the online auction.
He was diagnosed with motor neuron disease at the age of 22 and with only a few years of life, Professor Hawking died in March at the age of 76.
He has expanded his scientific thinking about black holes and the origin of the universe and has achieved world famous personality by writing best-selling books and protagonists The Simpsons.
A scenario from one of his appearances on the animated television show sold for $ 11,235 to the sale of 22 items by Prof Hawking, while a collection of medals and awards brought him over $ 530,000.
Lucy's daughter said the sale gave the fans of his work the opportunity to get a message of our father's extraordinary life in the form of a small selection of exciting and fascinating items.
Hawking's children are hoping to keep his scientific record for the nation.
Christie's auction handles the negotiations to hand over the file to the British authorities instead of the inheritance tax.
The nine-day auction, "On The Shoulders of Giants," also sold items belonging to other great scientists such as Isaac Newton, Charles Darwin and Albert Einstein.