| Name | Nestler 21/53 Variant |
| Front Scales | 10inch / L K A = B CI C = D P S T |
| Back Scales | = LL3 LL2 LL1 = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 295x50x7 |
| Area of Use | generic |
| Origin of Rule | actual item |
| Match Number | 1819 |
| Comment | |
| Thumbnail | No Picture |