| Name | Faber Castell 63/91 Variant |
| Front Scales | 14cm / A = B C = D |
| Back Scales | = sin lg tg = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 155x31.7x4.2 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 1090 |
| Comment | |
| Thumbnail |  |