Serie XXX; Plaster models of different kind

Number Title Date of Design Dimension (cm) Material
Serie XXX, nr. 1 Surface with only three singularities of the projective plane. 1903 21-36-8 Plaster
Serie XXX, nr. 2 Symmetical surface of a projective plain. 1902 21-25-17 Plaster
Serie XXX, nr. 3 Osculation surface into parabolic points. (1903,1905, 1909 of 1910) 15 Plaster
Serie XXX, nr. 5 Model with the places of tending center points of a space curve. (1903,1905, 1909 of 1910) 15-22 and 5-17 and 5 Plaster