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IBM Archives
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Exhibits
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Antique attic, vol. 3
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Artifacts list for vol. 3, items I-L
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Leonardo's Scaling Ladder
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To reach the top of the wall of an enemy fortress, Leonardo da Vinci designed this scaling ladder in a form similar to that employed today in fire-fighting apparatus. It is elevated and lowered by means of the crank and the large toothed gear.
