| Name | Park Inst. Co. Compass |
| Front Scales | 12,5cm / A = B CI C = D K ] 5inch |
| Back Scales | = S L T = |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 152x35x5 |
| Area of Use | generic |
| Origin of Rule | actual item |
| Match Number | 2103 |
| Comment | |
| Thumbnail | No Picture |