Nr. 320
2 stereo's of a gypsum model of a surface of 3. order with the 27 lines
Row: 1

Nr. 321
Lissajous tuning fork curves. 18 stereo's with explanation
Row: 1

Nr. 322
24 stereo's of crystal lattices with text volume
Row: 1

Nr. 323
16 stereo's of algebraic spherical curves
Row: 1

Nr. 356
20 stereo's Lissajous curves
Row: 2

Nr. 337
Kreutz: Elements of the crystal structure
Row: 2

Nr. 336
Stereo of the Desargues configuration
Row: 2

Nr. 335
Stereo: pentagonal dodecahedron with 5 inscribed dice
Row: 2

Nr. 365
Large frustum of pyramid
Row: 3

Nr. 700
The plane analoga of the Schoenfliess space groups
Row: 3

Nr. 898
Stereoscopic pictures of crystal grids from v. Laue and v. Mises
Row: 3