Name Faber Castell 1/87 Rietz Variant
Front Scales 27cm / K A = B CI C = D L ] 1:25
Back Scales = sin sin/tg tg =
Type of Rule slide rule
Material wood/plastic
Dimension (mm) 295x39x11.5
Area of Use generic
Origin of Rule Herman van Herwijnen
Match Number 896
Comment  
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