| Name | Diwa 511 Electro |
| Front Scales | 25cm 10inch / Dynamo Motor K A = B CI C = D Volt tg. sin. |
| Back Scales | = LL1 LL2 LL3 = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 295x47x6 |
| Area of Use | electrical |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 768 |
| Comment | |
| Thumbnail |  |