Nr. 211
Apollo of the Belvedere with parabolic curve
Row: 2

Nr. 192
Helicoid
Row: 2

Nr. 191
Oblate rotational ellipsoid
Row: 2

Nr. 69
Helicoid of constant negative curve
Row: 2

Nr. 415
Brass plates of constant negative curvature
Row: 3

Nr. 415
Brass plates of constant negative curvature
Row: 3

Nr. 448
Glasses of Clebsch
Row: 4

Nr. 447
Plaster portrait of Clebsch
Row: 4