Creases near the upper right corner; a water stain on the lower left corner. No flexing in the field.
As stated in Michał Biskup’s study:“It is precisely the three-letter series that are the rarest for the 1,000 Polish mark notes.”
This is the ZAF series.
A more interesting number, beginning the same way as the lower range for this series (244...) in the aforementioned study.
The stamp is printed on white paper, with a watermark featuring “eagles and the letters BP.”
