![File:Leonardo da Vinci - RCIN 919026, Verso The mechanics of the arm in man and monkey c.1508.jpg - Wikimedia Commons File:Leonardo da Vinci - RCIN 919026, Verso The mechanics of the arm in man and monkey c.1508.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/8/82/Leonardo_da_Vinci_-_RCIN_919026%2C_Verso_The_mechanics_of_the_arm_in_man_and_monkey_c.1508.jpg)
File:Leonardo da Vinci - RCIN 919026, Verso The mechanics of the arm in man and monkey c.1508.jpg - Wikimedia Commons
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Folio f 85r. Codex Madrid I -Ms. 8937- 'Treaty of statics and mechanics', 192 folios with 384 pag... Drawing by Leonardo da Vinci -1452-1519- - Fine Art America
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Study of the Mechanics of a Spinning Wheel by Leonardo da Vinci 1493-1497 pen and ink Stock Photo - Alamy
![File:Leonardo da Vinci - Recto Horses and soldiers, mechanics, and the Angel of the Annunciation. c.1503-4.jpg - Wikimedia Commons File:Leonardo da Vinci - Recto Horses and soldiers, mechanics, and the Angel of the Annunciation. c.1503-4.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Leonardo_da_Vinci_-_Recto_Horses_and_soldiers%2C_mechanics%2C_and_the_Angel_of_the_Annunciation._c.1503-4.jpg/800px-Leonardo_da_Vinci_-_Recto_Horses_and_soldiers%2C_mechanics%2C_and_the_Angel_of_the_Annunciation._c.1503-4.jpg)
File:Leonardo da Vinci - Recto Horses and soldiers, mechanics, and the Angel of the Annunciation. c.1503-4.jpg - Wikimedia Commons
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