Göttingen Collection of Mathematical Models and Instruments

Case number 28

Inversion of the sphere Klein bottle (cut in half) Boy's surface of degree 6 Klein bottle
Two-sided surface with the clover leaf sling as boundary curve Clover leaf sling on torus Clover leaf sling on torus Model of a clover leaf sling with singularity-free surface
3-times twisted Möbius strip with clover leaf sling as border Three Möbius strips Möbius strip
Three Möbius strips Three Möbius strips Knitted Möbius strip
Wooden ring with 7 neighbouring areas Wooden ring with 7 neighbouring areas Three rings that are devoured with each other, but not pairwise
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