Aristo 90172 Slide Rule for Pipeline Calculations

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Country of manufacture: Germany,            Date of manufacture: >=1957
Overall length: 24.5 cm,          Width: 5.6 cm,           Weight: 45.9 gms
Materials: all plastic, closed body form
Cursor: no cursor on this example
Scales: 7 + 2 nomographs
Front: φ [ m/sec, t/Std ] γ+nomograph, γ
Back: nomograph, table of zeta values, Table of Specific Weight "γ" for Pure Airfree Water
Slide Back : Pressure Loss Δp, t/Std
Gauge Marks: [      ]
Condition: C5 (Normal signs of use)
Came with: original brown leather slipcase, instruction booklet (German)

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