| Name | Nestler 0121 Darmstadt Variant |
| Front Scales | 13cm / P K A = B CI C = D S T |
| Back Scales | = LL1 LL2 LL3 = |
| Type of Rule | slide rule |
| Material | Anagit |
| Dimension (mm) | 154x37x4.5 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 1899 |
| Comment | |
| Thumbnail |  |