| Name | Blundell 305 C Electro Academy |
| Front Scales | 1) EFF GEN.MOT. A = B CI C = D K LL2 LL3 |
| Back Scales | = S L T = |
| Type of Rule | slide rule |
| Material | PVC |
| Dimension (mm) | 287x46 5x3 5 |
| Area of Use | generic |
| Origin of Rule | IJzebrand Schuitema |
| Match Number | 533 |
| Comment | |
| Thumbnail |  |