These stamps were not issued due to the currency revaluation to Groszy. In 1951, these stamps were denominated (overprinted) in Groszy as Fischer 548 (Michel 686) and Fischer 567 (Michel 706). Click here to go to the Groszy overprint section.
Dove of peace
About the currency revaluation from Złoty to Groszy
II światowy kongres pokoju = Second world peace congress.
Fischer 548 (Dove of peace overprint)
Fischer 567 (Bolesław Bierut overprint)
Find other Polish stamps depicting Bolesław Bierut
The Groszy overprints
World Peace Congress