| Name | Graphoplex 690 Neperlog |
| Front Scales | L P AI A = B T<45ø ST S C = D T>45ø DI K |
| Back Scales | LL01 LL02 LL03 DF = CF CIF K CI C = D LL3 LL2 LL1 |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 336x45x5 |
| Area of Use | generic |
| Origin of Rule | actual item |
| Match Number | 1322 |
| Comment | |
| Thumbnail | No Picture |