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<p>[QUOTE=&quot;Numbers, post: 2708914, member: 11668&quot;]It can happen.&nbsp; Think about how the numbering heads work: the last digit changes for every sheet, the second-to-last changes for every tenth sheet, and so on.&nbsp; So if the ink runs out in the middle of a run, so that the numbering heads aren&#039;t getting re-inked between successive sheets any more, then it only takes a couple of sheets before all the ink is gone from most of the digits of the serial--but the last digit will still have traces of ink for at least ten sheets, because a new previously-inked digit rotates into place each time.</p><p><br /></p><p>In this case, the last two digits of the numbering head both rolled over for this sheet (remember the serialling counts *downward*, so xxxxxx89 comes after xxxxxx90).&nbsp; So the 89 still had traces of ink on them from the last time they were inked, but all the other digits used up their last bits of ink on sheet 90 or 91 or so.</p><p><br /></p><p>Of course, from an image on the internet, I have no way to tell whether this note is a genuine error or a fake of some kind.&nbsp; But it&#039;s definitely a plausible error, and worth getting authenticated by the experts.[/QUOTE]</p><p><br /></p>

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