a Stephan Alcorn illustration, 2017
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1882 calligraphy art see full size
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S P I R A L S Maurice Pillard Verneuil
a 1924 school fire escape slide
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an early spiral animation for a turntable see full size
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another suspended spiral ramp, 1960 see full size
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a John D. Batten illustration see full size
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Ford Motors at the 1939 NY World's Fair see full size
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Ford Motors inside at the 1939 NY World's Fair see full size
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a Robert Quackenbush illustration see full size
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at the 1958 Brussels World's Fair see full size
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Cyril E. Power art, 1929 see full size
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waterspouts illustrated in a Camille Flammarion book see full size
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a Jen Stark paper sculpture
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a Karl Hubenthal illustration, 1967 see full size
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