| Name | Faber Castell 11/87 |
| Front Scales | 27cm / K A = B CI C = D L ] 1:25 #33-56cm# |
| Back Scales | = sin sin/tg tg = |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 300x38x9 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 3123 |
| Comment | |
| Thumbnail |  |