Rare Apple-1 Personal Computer up for auction

An Apple-1 Personal Computer is displayed at Christie's on October 9, 2012 in London, England. Introduced in July 1976 the Apple-1 was sold without a casing, power supply, keyboard or monitor and buyers would have to supply their own. This rare personal computer has come from the estate of Joe Copson, a former Apple employee. The Apple-1 machine was designed and each model hand-built by Steve Wozniak. His friend Steve Jobs suggested a number of improvements, and handled it's sale and marketing. When offered at auction in Christie–s sale of Travel, Science and Natural History on October 9, 2012 it is expected to fetch between £50,000 and £80,000. (Photos by Peter Macdiarmid/Getty Images)