World’s first pocket calculator goes up for auction: ‘Exceptionally rare’ 17th century machine made of wood could fetch £100,000

By Sarah Griffiths | An ‘exceptionally rare’ pocket-sized calculator from the 17th Century is expected to attract £100,000 at auction. The Arithmetical machine is one of the first mechanical calculating devices known to exist and is the first portable device. … Continue reading →

The post World’s first pocket calculator goes up for auction: ‘Exceptionally rare’ 17th century machine made of wood could fetch £100,000 appeared first on BBB News.

via BBB News http://bbb-news.com/blog/2013/08/26/worlds-first-pocket-calculator-goes-up-for-auction-exceptionally-rare-17th-century-machine-made-of-wood-could-fetch-100000/