| Country of Origin | United States |
|---|
Check the listing for details. Acu Math Acu Rule THE MANNHEIM SLIDE RULE No 44 Self Teaching Manual. Condition: Used, Made in United States. Listed at 9.99 USD. text clean, binding tight, edge wear, Acu-Rule Manufacturing, small stain on back cover, 5 pages, Mannheim Type #44, undated,
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