Stephen Hawking's doctoral thesis, written in 1965, has sold for nearly £585,000 in an online Christie's auction. Among the items sold were his motorized red leather wheelchair and a copy of his doctoral thesis Properties of Expanding Universes-one of five known copies-which sold for 296,750 pounds ($387,402) and 584,750 ($763,381) respectively.
A rare copy of Professor Stephen Hawking's original PHD thesis has sold for more than $750,000 during a special Christie's auction in London.
Hawking published his thesis in 1965, two years after being diagnosed with amyotrophic lateral sclerosis (ALS), a form of motor-neurone disease that would eventually leave him paralysed. All of those were sold, and the total, about US$1.8 million, was seven times more than had been predicted.
One of the theoretical physicist's wheelchairs was sold at auction smashing its estimate.
"By the late 1980s he was at the height of his fame, and given his extensive travels to conferences and public events, as well as the scope of his intellectual explorations of space-time, this is arguably both literally and metaphorically the most-traveled wheelchair in history".
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.
A script for his appearance on The Simpsons sold for £6,250. His various medals and awards raised a total of £296,750 or about $390,000. This particular episode was aired on September 26, 2010.
"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", she added.