1950-1959
Poland 1959 - The Third Congress for Miners in Katowice, July 1959
Poland 1959 - The 7th World Youth Festival in Vienna, Austria, 1959
Poland 1959 - The 30th Anniversary of Polish Airlines
Poland 1959 - Space satellites 3v imperforated
Poland 1957 - The 12th Memorial Ski Descent for Bronislaw Czech and Helena Marusarzówna, who were killed by the Nazis in World War II
Poland 1957 - Youth Fencing Championship in Warsaw 1957
Poland 1958 - The 7th World Championship Gliding
Poland 1959 - The 15th Anniversary of the Polish People's Republic
Poland 1959 - The 1000 Schools for the 1000th Anniversary of Poland
Poland 1957 -Skiing championship 3v
Poland 1956 - World Deaf Chess Championship
Poland 1956 -The 9th International Peace Race Warsaw-Berlin-Prague
Poland 1956 - Renaissance Year Overprints