Date and serial number stamps
The two things on a stamp anybody ever argues about. Why a band date stamp so often prints yesterday, what a serial counter has to guarantee before it is worth anything, and how to make both resolve themselves instead of being drawn into a picture.
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Guides on this
- Date stamps: why yesterday's date keeps showing up, and the fix 9 September 2026: Both kinds of date stamp fail the same way: nobody notices the date is wrong until the document has gone out.
- Serial numbers on a stamp: what they prove and how to keep them unique 9 September 2026: A stamp with a number on it is a filing system. It only works if the same number never comes out twice.
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