The "Kościuszko Four" in competition-grade condition.
Variant marked with the first series.
Clean paper; the printing and placement of the chemical symbol are exceptionally centered.
On the reverse, a natural trace of printing ink.
This piece has been graded 66 EPQ, a rating that is completely unheard of for an 18th-century issue.
A real treat for collectors of Polish banknotes in the highest PMG grades.
