Models of rubric: Others Model 412 Model of a periodic surface (Minimal surface ?) Model 421 Punch cards to the factorization of big integers Model 424 Folder with a state examination thesis Model 425 Folder for the illustration of the projective mapping of two lines Model 426 Exercises for descriptive geometry Model 600 Average temperature of Göttingen for the 24 hours of the day and each month Model 652 Model Tensegrity Model 691 Four models with unknown meaning Model 692 Four models with unknown meaning Model 693 Four models with unknown meaning Model 694 Four models with unknown meaning Model 845 Surface Model 849 Shift planner Model 929 15puzzle Model 1441 Slide: Piston pump Model 1443 Slide: Rotation rapid press for four-sided journals Model 1444 Slide: Oldham coupling Model 1445 Slide: Turning lathe Model 1446 Slide: Basic rapid press with circular motion Model 1447 Slide: Mechanism of the circular motion Model 1448 Slide: Gimbal Model 1524 Slide: Optic illusion Model 1528 Slide: Projection machine Model 1529 Slide: Projection machine Model 1530 Slide: Projection machine Model 1531 Slide: Projection machine Model 1545 Slide: Stereoscopy Model 1546 Slide: Stereoscopy Model 1547 Slide: Stereoscopy Model 1548 Slide: Stereoscopy Model 1549 Slide: Stereoscopy Model 1550 Slide: Stereoscopy Model 1551 Slide: Line spectra Model 1552 Slide: Line spectra Model 1553 Slide: Line spectra Model 1554 Slide: Line spectra Model 1555 Slide: Line spectra Model 1556 Slide: Line spectra Model 1557 Slide: Line spectra Model 1585 Slide: Obscure airplanes Model 1586 Slide: Obscure airplanes Model 1587 Slide: Obscure airplanes Model 1588 Slide: Obscure airplanes Model 1589 Slide: Obscure airplanes Model 1590 Slide: Obscure airplane Model 1591 Slide: Obscure airplane Model 1592 Slide: Obscure airplane Model 1593 Slide: Obscure airplane Model 1594 Slide: Obscure airplane Model 1595 Slide: Obscure airplane Model 1596 Slide: Obscure airplane Model 1597 Slide: Obscure airplane Model 1598 Slide: Obscure airplane Model 1599 Slide: Obscure airplane Model 1600 Slide: Obscure airplane