Vintage Faber-Castell Ruler 883 c Germany with case

A.W. Faber-Castell 883/Z2 Engineer Scale Ruler Germany – Triangular Drafting

Vintage A.W. Faber Castell Triangular Engineering Ruler 883 - Made in Germany

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A.W. Faber Castell Triangular Engineering Ruler 883 + ACU MATH #600 Slide Rule

Vintage A.W. Faber Castell Triangular Engineering Ruler 883 - Made in Germany