A tremendously rare item!
Currently, this is one of only three known Insurrection banknotes with GR filigree.
According to Robert Jadrych's findings, currently only one other 50 piece and one 5 piece printed on such paper are known in addition to this piece.
This is a print of a Polish banknote from the Kosciuszko Insurrection period, but on paper prepared and intended (ordered) probably for the English market. The watermark (filigree) shows the letters GR. According to Robert Jadrych, the GR monogram is derived from Georgius Rex, i.e. George III - King of Great Britain in 1760-1820 (the period covering the Insurrection).
Most likely by mistake, single sheets of such paper were delivered to Poland in fulfillment of an order (from the Netherlands) of paper for the printing of Treasury Tickets of the Kosciuszko Insurrection.
A tremendous rarity.
Banknote very nicely preserved. Fully natural and without any preservation. Folded in half, with a few minor bends. Superficial soiling in the upper part of the paper, as if splashed, with more on the obverse side. Tiny loss at the edge of the lower margin. Paper well and evenly colored with very pleasing medium colors (50s happen to be both very light brown and heavily dark, difficult to read). Also a very well preserved and beautifully exhibiting dry seal with a clear, natural sheen.
