Concise Sama & Etani Mobil Lubricants Circular Slide Rule and Viscosity Conversion Factors

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Country of manufacture: Japan,            Date of manufacture: ____
Overall Height: 11.0 cm,          Width: 7.5 cm
Materials: All plastic
Scales: 5
Front: D [ C, CI, A, K ]
Gauge Marks: [ π]
Condition: C4 (Minimal signs of use)
Came with: Black plastic case and instructions (Japanese)

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