Faber Castell 3/11 for steel & concrete calculations

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Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 38.6 cm,          Width: 4.2 cm,           Weight: 154.9 gms
Materials: Simplex design, celluloid lamimate over wood
Cursor: 4.5 X 4.3 X 1.4 cms; metal framed plastic lens; lines = one on front; one on bottom edge
Scales: 15
Front: 30 cm // A [ B, CI, x, h, db (70-15), db (15-100), C ] D || K
Slide Back: sin, lg, sin/tg, tg
Well: blank
Back: Tabelle der Werte, Rundeisentabelle
Gauge Marks: [C (1128), π, C₁ (3568)]
Condition: C4 (Minimal Signs of Use; slightly warped but slides easily)
Came with: Original 2-part black cardboard case

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