| Name | Faber Castell 398 Variant |
| Front Scales | 27cm / LL2 A = B CI C = D LL3 ] K #Dynamo-Motor n=% Volt# |
| Back Scales | = S L T = |
| Type of Rule | slide rule |
| Material | wood/plastic |
| Dimension (mm) | 300x41x11 |
| Area of Use | electrical |
| Origin of Rule | IJzebrand Schuitema |
| Match Number | 990 |
| Comment | |
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