| Country of Origin | United States |
|---|
Check the listing for details. Mannheim Professionl Slide Rule: ACU-MATH no. 511 Vintage Case. Condition: Used, Made in United States. Listed at 19.95 USD. Mannheim Professionl Slide Rule: ACU-MATH no. 511 Vintage Case. The slide rule is in very good condition. The case shows some wear.
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