| Name | Relay 80 DK 1 |
| Front Scales | A = B CI C = D |
| Back Scales | |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 227x24x8 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 2254 |
| Comment | |
| Thumbnail |  |
| Name | Relay 80 DK 1 |
| Front Scales | A = B CI C = D |
| Back Scales | |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 227x24x8 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 2254 |
| Comment | |
| Thumbnail | |