| Name | Aristo 89 Rietz Variant |
| Front Scales | 13cm / K A = B CI C = D L |
| Back Scales | = sin sin/tg tg = 5INCH |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 153x32x3.8 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 121 |
| Comment | |
| Thumbnail |  |