| Country of Origin | United States |
|---|
Check the listing for details. Vintage Concise CTCS-552 Circular Slide Rule Conversion Tables NUPRO Calculator. Condition: Used, Made in United States. Listed at 14.00 USD. Features rotating circular slide rule with multiple calculation scales, periodic table chart, and conversion tables for engineering constants, pressure, energy, velocity, and more. Made in Japan by Concise for Sama & Etani (1960s).
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