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Summary
Casio fx-550S scientific calculator, circa ~1986 Back reflector and polarizer were replaced with substitute due to vinegar syndrome.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:25, 31 March 2022 | | 2,634 × 4,135 (13.37 MB) | Jimbo (talk | contribs) | Casio fx-550S scientific calculator, circa ~1986 Back reflector and polarizer were replaced with substitute due to vinegar syndrome. |
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