(4 notes) Poland, Foreign Exchange Certificates, 5-50 Centow, 1969 and 1979. Serial #'s HC 4905393, FN 2887357, HA 0714238, and GA 003207850 Centow, 20 Centow, 5 Centow, 5, Centow notes, printed dates 1969 and 1979Issued by Bank Polska Kasa Opieki S.A.The 50 Centow is hole punch canceled. Pick FX39, FX25, FX36, and FX23 (Standard Catalog of World Paper Money: Modern Issues by Cuhaj); www.banknote.ws. Fine, Almost Uncirculated, Almost Uncirculated, and Almost Uncirculated.