The rarest banknote of the Bank of Poland's period in exile.
The higher of the two denominations made in the United States, at the American Bank Note Company (ABNCo) printing plant in New York. Made in the second half of 1942, with a retroactive issue date (August 20, 1939).
A valued issue, it is also interesting because of the unusual for Polish banknotes form of security - colored, phosphorescent confetti in the paper (so-called plachettes).
