“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 2 stamps which represents events in Polish history that happened in June: Poznań street protests (1956) and labour strikes in Radom and Ursus (1976). …”

“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 1 stamp which represents events in Polish history that happened in September: invasion of Poland by Nazi Germany and the Soviet Union at the outbreak of the World War II. …”

“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 3 stamps which represent events in Polish history that happened in April: the Racławice battle during the Kościuszko Uprising (1794), Katyń massacre (1940), the Warsaw Ghetto Uprising (1944). …”

“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 3 stamps which represents events in Polish history that happened in August: the Polish-Soviet War (1920), Warsaw Uprising (1944) and August Accords (1980). …”

“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 3 stamps which represent events in Polish history that happened in December: the outbreak of Greater Poland Uprising (1918), the street protests at the seacoast (1970) and introduction of the Martial Law (1981). …”

“…Sheet, with "Poczta Solidarność" imprint, part of the "Polish Months" series, consists of 3 stamps which represent events in Polish history that happened in May: The first Polish Constitution (3 May 1791), the victory at Monte Cassino (18 May 1944), and street protests against the Martial Law (1 May 1982). …”