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Keywords from Image Description:
Difference engine plate . en Part of Charles Babbage's Difference Engine No as assembled in exhibited and later in the South Kensington Museum google co uk id FaJAAAAMAAJ pg PP zoom hl en sig ACfUUAYPvMspImpBtHoSYuPkZbtNLg ci edge Google books Woodcut after drawing by Benjamin Herschel Babbage PDold woodcuts Difference