| Name | Diwa 301 Rietz |
| Front Scales | 25cm 10inch / K A = B CI C = D L |
| Back Scales | = S S&T T = |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 294x38.4x8.4 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 758 |
| Comment | |
| Thumbnail |  |