CC0 · no rights reserved
Geometric Model by A. Harry Wheeler, Concentric Spheres
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This white plastic model show three sets of concentric rings, one set representing great circles on an inner sphere and the other great circles on an outer sphere.
National Museum of American History’s own descriptionCredit lineGeometric Model by A. Harry Wheeler, Concentric Spheres. Wheeler, Albert Harry. National Museum of American History, Gift of Helen M. Wheeler. CC0.