Includes:
- Acu-Math No. 500 slide rule
- Brown fitted storage case
- No. 44 Self-Teaching Instruction Manual for Mannheim-type slide rules
- Additional Acu-Rule printed instruction/parts sheet
The slide rule retains its printed mathematical scales, conversion information, clear cursor, and metal end hardware. It shows normal-to-heavy cosmetic wear consistent with age and prior use, including scratches, marks, discoloration, and surface soiling. The case has considerable exterior wear, staining, scuffing, and discoloration. Paper materials also show age and handling wear.
Please review all photos carefully, including the measurement photos, as they are part of the condition description. You will receive the exact items pictured.
Item specifics
I would use:
- Brand: Acu-Math
- Model: No. 500
- Type: Slide Rule
- Country of Origin: United States
- Vintage: Yes
- Modified Item: No — only if you have no reason to believe it was modified
- Material: Leave blank unless requires it; I would not guess.
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