Pioneering British mathematician and mechanical engineer (1791-1871) whose Difference Engine and Analytical Engine are generally acknowledged as the first programmable computers. ALS signed “C. Babbage,” three pages on two adjoining sheets, 3.5 x 5.25, East Horsley letterhead, December 27, 1849. Handwritten letter to Mme. de Falcon, in part: "I am truly glad to find that you are yet in London. I shall leave this place early tomorrow morning and hope to reach you…by one or half past one o'clock. You will have much to do previous to your departure. I hope therefore that instead of being an impediment you will make me useful…I am glad to hear that you have made such comfortable arrangements for M. de Falcon." In fine condition.
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