| Name | Blundell 503 Commerce Academy |
| Front Scales | L K A = B CI C = D S ST T |
| Back Scales | M1 Year Days = Weeks Decrease/Increase C = D M2 M3 |
| Type of Rule | slide rule |
| Material | PVC |
| Dimension (mm) | |
| Area of Use | financial |
| Origin of Rule | actual item |
| Match Number | 2963 |
| Comment | |
| Thumbnail | No Picture |