Very rare item.
Piece from the first package of banknotes intended for circulation, perforated in the bank with a MODEL perforation and donated to the collection of the then Prime Minister Piotr Jaroszewicz (Prime Minister in 1970-1980). Hence, the colloquial term for this type of specimens as "Jaroszewicz's Patterns" (perforated, usually with low numbers - often from the first packet, sometimes additionally overprinted MODEL, from NBP machines) was adopted in the collector market.
A very attractive collector's value.
Issuing state of preservation without remarks, only to notice a single micro callus on the upper margin.
