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,” one page, 3.5 x 4.5, February 25, 1860. Letter to "My dear Mrs. Turner," in part: "I am very sorry it was not in my power to join your party last evening after the lecture at the Royal Institution." Affixed to a slightly larger sheet. In very good to fine condition, with trimmed edges and scattered light stains. Most letters of Babbage are in the third person, this letter with his signature at the end being a much scarcer form of his ALS.
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