Nr. 425
Folder for the illustration of the projective mapping of two lines
Row: 1

Nr. 695
Single parts of the Brunsviga calculating machine
Row: 1

Nr. 664
Some clock wheels for gyro experiments
Row: 1

Nr. 504
Model of the calculating machine Mercedes-Euklid
Row: 1

Nr. 426
Exercises for descriptive geometry
Row: 1

Nr. 434
Panels with curves and osculation parabolas
Row: 1

Nr. 433
Panels with curves and osculation parabolas
Row: 1

Nr. 435
Panels with curves and osculation parabolas
Row: 2

Nr. 436
Panels with curves and osculation parabolas
Row: 2

Nr. 437
Panels with curves and osculation parabolas
Row: 2

Nr. 438
Panels with curves and osculation parabolas
Row: 2

Nr. 518
Measuring instruments
Row: 3

Nr. 449
Specimen of graphical papers
Row: 3

Nr. 439
Panels with curves and osculation parabolas
Row: 3

Nr. 440
Panels with curves and osculation parabolas
Row: 3

Nr. 549
3 parallel rulers
Row: 4

Nr. 572
A conform mapping as two-dimensional logarithm plaque
Row: 4

Nr. 594
Rotation of prismatic bars
Row: 4

Nr. 595
Rotation of prismatic bars
Row: 4