Slide Rule Faber Castell
Slide Rule Faber Castell, A Boxed 10″ Slide Rule made in wood with celluloid markings on front, back and sides.
The metal framed cursor has Multiple Hairlines
Period
Early to Mid 1900’s
Origin of Slide Rule Faber Castell
Made in Bavaria
Condition
Box has general surface wear, slide rule with very slight discolouring of the celluloid. Has owners’ markings on the box inside edge.
Size Box
317mm 
50mm 
24mm
