| Name | Aristo 3LL / 150 Scholar Instruction rule |
| Front Scales | L K A = B CI C = D S ST T |
| Back Scales | = S LL2 LL3 = |
| Type of Rule | slide rule |
| Material | all wood |
| Dimension (mm) | 1800x300x23 |
| Area of Use | generic |
| Origin of Rule | actual item |
| Match Number | 104 |
| Comment | |
| Thumbnail | No Picture |