Apple I was the first computer hand-built by Steve Wozniak way back in 1976 originally for $666 (Rs 47,000) where it came with a board that could be hooked to a TV and keyboard. The original computer never came with a casing which is why this particular version was sold in a briefcase. 

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Today, the same computer was sold at an auction for $471,000 (Rs 3.3 Crore) and came with a built-in keyboard, original manuals, a handful of magazines with articles about the Apple I. The auctioned piece also came with compatible hardware such as an SWTPC PR-40 dot matrix printer, extremely rare photocopies of the original Apple founding paperwork and other items. 

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Nobody knows the exact number of Apple I computers that were made; however, some estimate only a total of around 200 devices were made. As of today, only 68 such computers exist in the world according to the Apple-I Registry run by enthusiasts. This particular Apple I computer that was auctioned off has been listed as number 10. 

The Apple I plays a significant role in Apple's history as it was the first product that helped in financing the creation of the company. Production of the Apple I was discontinued on September 30th, 1977 and was felled by its successor in the same year. 

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According to the Apple I Registry “Both Steve Jobs and Steve Wozniak have stated that Apple did not assign serial numbers to the Apple l. Several boards have been found with numbered stickers affixed to them, which appear to be inspection stickers from the PCB manufacturer/assembler. “

Source: TechCrunch, Christies