Slide rule by Faber Castell Syst. Rietz 1/87 German Vintage Rule

Slide Rule FABER CASTELL 1/87 Rietz with Sliding Scale

Faber Castell 57/87 Students Advanced Rietz Model Slide Rule Made In Austria

Vintage Faber Castell Slide Rule in nice condition

Vintage A.W.FABER "Castell" Wooden Ruler 1/87 Syst. Rietz

VINTAGE FABER-CASTELL 1/87 RIETZ SLIDE RULE

VINTAGE A.W.FABER CASTELL 1/87 RIETZ SLIDE RULE +IND. FUELS INSTRUCTIONS (G1368)

Vintage engineers' slide rule Faber-Castell model 1/87 System Rietz boxed German