File:Country of production (Brazil) and serial number on backside of financial calculator Hewlett-Packard HP-12C, produced 1988 (cropped).jpg
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Country of production and serial number on back of calculator HP-12C, 1988
Summary
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English: Backside of Financial Calculator Hewlett-Packard HP-12C built from 1981. The depicted item was produced 1988 in Brazil - Brazil is printed on the back, while the date can be derived by the serial number (top right) by the formula: The first two digits/cyphers of the number are the years which have passed (on the day of production) since the year 1960. As the first two digits of the SN of the device in the image above are 28, the production year is 1960+28=1988. |
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| Author | Pittigrilli | |||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:40, 15 March 2024 | | 1,756 × 539 (552 KB) | Pittigrilli (talk | contribs) | more contrast, less gamma value |
| 13:37, 15 March 2024 |  | 1,756 × 539 (572 KB) | Pittigrilli (talk | contribs) | File:Backside of Financial Calculator Hewlett-Packard HP-12C built from 1981, this item produced 1988.jpg cropped 52 % horizontally, 76 % vertically using CropTool with lossless mode. |
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