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 both sides, 3.5 x 4, April 22, 1847. In full: “The Lyells are to bring Mr. Winthrop here on the 8th. I fear he is carried off to Lady Palmerston’s on the 24th. I will breakfast with you on Saturday next holding you bound under a heavy penalty to produce the Lyells.” Nicely double-matted and framed with an image of Babbage to an overall size of 15.75 x 12.5, with a glass backing for viewing the first page. In fine condition, with a bit of brushing to a few words. The notable figures mentioned in this letter include geologist Charles Lyell and his wife, friends of the Babbages; Lady Emily Palmerston, a socialite whose husband would later become prime minister; and Robert Charles Winthrop, a politician from Boston. Pre-certified PSA/DNA.
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