. English: Fleuron from book: A key to the modern sliding-rule. Containing the description, and exlpanation [sic] of the various purposes, of that valuable instrument, ... By the Rev. W. Flower, ... 117 A key to the modern sliding-rule Fleuron T113342-1
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Photo credit: © The Picture Art Collection / Alamy / Afripics
License: Licensed
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