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Geometric Model by A. Harry Wheeler, Great Circles on a Sphere
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This cut and fit tan paper model shows three perpendicular rings of equal size, representing great circles on a sphere.
National Museum of American History’s own descriptionCredit lineGeometric Model by A. Harry Wheeler, Great Circles on a Sphere. Wheeler, Albert Harry. National Museum of American History, Gift of Helen M. Wheeler. CC0.