| Name | Diwa 311 Electro Variant |
| Front Scales | 25cm 10inch / 1) K A = B CI C = D Volt tg. cin. |
| Back Scales | = LL1 LL2 LL3 = |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 295x48x9 |
| Area of Use | electrical |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 761 |
| Comment | |
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