| Name | Faber Castell 2/83 Novo Duplex |
| Front Scales | K T1 T2 DF = CF CIF CI C = D S ST P |
| Back Scales | LL03 LL02 LL01 W2 = W2' L C W1' = W1 LL1 LL2 LL3 |
| Type of Rule | slide rule |
| Material | plastic |
| Dimension (mm) | 332x47.4x5 |
| Area of Use | generic |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 925 |
| Comment | |
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