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A set of gears, a mechanism detail. Watercolor illustration in children's style, hand-drawn. Blank for postcards, puzzles, diagrams. Gear, detail, mechanism, cartoon, children, kids, boy, toys
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Electricity machine (dynamo electric) - Gramme 1870 - Vintage engraved illustration isolated on white background
A stunning print of Nikola Tesla Electro Magnetic Motor 1890 patent, showcasing his groundbreaking technology.
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3d illustration of Galileo's microscope-2

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