| Name | Reiss DDR Darmstadt |
| Front Scales | K A = B CI C = D L |
| Back Scales | cos sintg = LL1 LL2 LL3 = sin tg |
| Type of Rule | slide rule |
| Material | metal |
| Dimension (mm) | 300x33x4 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 2238 |
| Comment | |
| Thumbnail |  |