19th century scientist PNG, stickers, cliparts, transparent illustration & graphics

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Charles Darwin portrait, vintage line art, evolution scientist, retro illustration, historical figure, natural selection, 19th-century artwork, png
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Nikola Tesla portrait sketch, alternating current inventor, monochrome scientist illustration, electrical engineering pioneer, historical figure drawing, innovation in physics, 19th century inventor art
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Charles Babbage portrait, Difference engine inventor, Analytical Engine pioneer, monochrome historical figure, 19th century scientist, early computing innovator, vintage engineering genius