Serie I; Plaster models

Number Title Date of Design Dimension (cm) Material
Serie I, nr. 2a The enveloping surface of a system of rays of a paraboloid. The two components separated 1877 10-10 and 7-7 Plaster
Serie I, nr. 2b The enveloping surface of a system of rays of a paraboloid. The two components associated 1877 10-10-11 Plaster
Serie I, nr. 3a The enveloping surface of a system of rays of a one sheeted hyperboloid. The two components separate 1877 17-17-16 Plaster
Serie I, nr. 3b The enveloping surface of a system of rays of a one sheeted hyperboloid. The two components associated. 1877 10-10-18 Plaster
Serie I, nr. 4 The geodesics on an ellipsoid of revolution. 1877 10-10-18 Plaster
Serie I, nr. 5 The geodesics on a 3-axis ellipsoid through the umbilic point. 1877 10-18-18 Plaster