| Name | Sun Hemmi P 281 Ahrend Instruction rule |
| Front Scales | T K A = B CI C = D L S ST |
| Back Scales | |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 1530x440x35 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 2480 |
| Comment | |
| Thumbnail |  |