A good quality forgery of the era, not caught out of circulation.
Although at first glance it looks very good, upon close inspection there is noticeable loss of print quality.
Most striking is the poor quality of the underprint, where the eagles are practically unnoticeable and its lines in general very fine; the entire background is clearly lighter in appearance. Clearly poor printing quality evident in the central field, where the regular green ornaments from the original here only marred by a green grid. Numerous other differences equally noticeable in the distinctly mediocre printing precision of many other elements of this bill.
Interesting item. According to Jakub Zelewski, who has been exploring the subject of Polish banknote forgeries, Moritz Zismann, a manufacturer of wooden products and photographer with a forgery workshop in Vienna, was responsible for its production.
Mild vertical deflection centrally. Other than that, preserved beautifully.