File:Calculating device for multiplication by Samuel Morland 1666.jpg
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current | 12:39, 16 March 2009 | 791 × 762 (322 KB) | Mu | {{Information |Description={{en|1=Calculating device invented by Samuel Morland (1625-1695). "Machina Nova Cyclogica pro Multiplicatione. Or, A new Multiplying Instrument." Illustration in: "The description and use of two arithmetick instruments", London |
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