Series outside the official pool (the E series was left for the 10 zloty denomination).
In Cz. Miłczak's catalog its existence was noted earlier. At the current auction two pieces with similar numbering (end 53 and 65). Both of these banknotes are from the home archives of a non-collector.
A single vertical bend, with a gentle curve and a slight streak under the light, and imperfections in the edges themselves, mainly their boxing.
An all-natural banknote, without any conservation corrections.
A very rare item.