Concise Sama & Etani Dow Chemical Company, Chemical Tables & Circular Slide Rule, Model CTCS-552

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Country of manufacture: Japan,            Date of manufacture: ____
Overall Height: 11.0 cm,          Width: 7.5 cm
Materials: All plastic
Scales: 6,
Front: D, [ C, CI, L, A, K ]
Gauge Marks: [ π, C ]
Condition: C5 (Normal signs of use)
Came with: Black plastic case and instructions

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