| Name | Blundell DM 5 Simplified Rietz Instruction rule |
| Front Scales | K A = B CI C = D L |
| Back Scales | |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 1520x x |
| Area of Use | generic |
| Origin of Rule | brochure |
| Match Number | 2949 |
| Comment | |
| Thumbnail | No Picture |