| Name | Graphoplex 620 Rietz Variant |
| Front Scales | 27cm / K A = B CI C = D L |
| Back Scales | = SRT S T<45ΓΈ C = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 296x39.4x5.5 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 1304 |
| Comment | |
| Thumbnail |  |