| Name | Graphoplex Statos Stahlbeton Von Roll |
| Front Scales | 13cm / L cos B3 B2 = b2 a b = B 1) 2) 3) |
| Back Scales | = S&T S T b = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 153x44x4.8 |
| Area of Use | "concrete " |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 1284 |
| Comment | |
| Thumbnail |  |