To commemorate the 100th anniversary of the Nobel Prize in chemistry being awarded to Marie Curie, the National Bank of Poland sold 60,000 new 20-złoty notes packaged in a folder for 47 złotych each beginning on 25 November 2011.
BNP816 (P182): 20 złotych (US$5.00)
Brown and green. Front: Polish text; physicist Marie Skłodowska Curie; Sorbona w Paryżu (Sorbonne school building in Paris); coat of arms with crowned eagle; Ra (atomic symbol for radium) in SPARK. Back: Polish text; Curie quotation; Instytut Radowy w Warszawie (Radium Institute building in Warsaw); Nobel Prize medal for chemistry. Solid security thread with microprinted 20 Zł. Watermark: Marie Skłodowska Curie and electrotype Ra. Printer: PWPW S.A. 138 x 69 mm. Paper.
a. 20 KWIETNIA 2011. Sig. 16: Belka/Stopyra.
Prefix MS. 60,000 notes. Intro: 25.11.2011.
Courtesy of Rafal Nogowczyk, Mario Hilge, Jan Bogus, and Claudio Marana.