| Name | Tecnostyl 41/D Variant |
| Front Scales | 14cm / K A = B CI C = D T S |
| Back Scales | = LL1 LL2 LL3 = 5.5inch |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 150x37x4 |
| Area of Use | generic |
| Origin of Rule | actual item |
| Match Number | 2509 |
| Comment | |
| Thumbnail | No Picture |