Wikimedi'Òc

1975 CPA 4448.jpg - Matsievsky

USSR-communicationmeeting-1958.jpg - Butko

CAEM-COMECON (timbre RDA).jpg - Le Corbeau

Course de la paix 1952 (timbre RDA).jpg - Le Corbeau

Germanrgw.jpg - File Upload Bot (Magnus Manske)

Stamps of Germany (Berlin) 1986, MiNr 758.jpg - Nightflyer

Comecon 30th anniversary. USSR stamp. 1979.jpg - Котик полосатый

Stamp of Ukraine s875.jpg - Vizu

Stamp of Moldova md636-7a.jpg - Butko

Overrun Countries postage stamps.png - Illegitimate Barrister

Znaczki SW1983-1985.jpg - Julo

General Pulaski-2c.jpg - Gwillhickers

General Pulaski 1931 Issue-2c.jpg - Gwillhickers

2004-Lithuania-No 379-380.jpg - Antonio1952

Polish German cooperation.JPG - Volunteer Marek

Stamp of Ukraine s875 Euro 2012.jpg - Vizu

Stamp of Ukraine s875 Euro 2012 in cover.jpg - Vizu

Stamp of USSR 1809.jpg - Butko

00Pulaski.jpg - File Upload Bot (Magnus Manske)

1958 CPA 2157A.jpg - Butko

Stamp of USSR 1556.jpg - Butko

Stamp of USSR 1557.jpg - Butko

Stamp of USSR 1558.jpg - Butko

Soviet Union-1965-Stamp-0.06.Varshava.jpg - Mcowkin

Overrun countries Poland, issue of 1943.jpg - Gwillhickers

Lithuania presidency EU stamp 2013.jpg - Cekli829

Stamps of Uzbekistan, 2002-18.jpg - Cekli829

Stamps of Lithuania, 2004-13.jpg - Cekli829

1975 CPA 4462.jpg - Matsievsky

Karski.Znaczek1943.jpg - Mieciousa

EuroBasket 1939 - 1939 - 60 cnt.JPG - Pofka

The Soviet Union 1970 CPA 3908 stamp (Soviet and Polish Workers and Flags).jpg - Matsievsky

The Soviet Union 1970 CPA 3908 stamp (Soviet and Polish Workers and Flags).png - Matsievsky

1980 CPA 5067.jpg - Matsievsky

USSR 1955 1718-1721 1574 0.jpg - Butko

1974 CPA 4372.jpg - Matsievsky

1972 stamp of Umm al-Quwain Wojciech Fortuna.jpg - Materialscientist

1972 stamp of Ajman Wojciech Fortuna.jpg - Materialscientist

Nazarbayev 2013 stampsheet of Kazakhstan.jpg - Materialscientist

The Soviet Union 1964 CPA 3072 stamp (Socialist countries. 20th anniversary of Polish People's Republic) small resolution.jpg - Наумов Андрей

Почтовая марка СССР № 3185 1965. 20-летие Договора о дружбе между СССР и ПНР.jpg - Наумов Андрей

Почтовый блок № 3272. 1965. XIV первенство Европы по баскетболу.jpg - Наумов Андрей

Почтовая марка СССР 4851. 1978. Газопровод «Союз».jpg - Наумов Андрей

Почтовый блок СССР № 5384. 1983. День космонавтики.jpg - Наумов Андрей

Почтовая марка СССР № 5527. 1984. 40-летие Польской Народной Республики.jpg - Наумов Андрей

Почтовая марка СССР № 5629. 1985. 30 лет Варшавскому договору.jpg - Наумов Андрей

Stamp-ussr1978-international-space-flights-ussr-poland-0,06.png - Gone Postal

Stamp-ussr1978-international-space-flights-ussr-poland-0,15.png - Gone Postal

Stamp-ussr1978-international-space-flights-ussr-poland-0,32.png - Gone Postal

Russia stamp 2018 № 2352.jpg - Engelberthumperdink

Марка СССР «Строительство газопровода ’Союз’», 1978.png - Majskij

Stamp of Albania - 1992 - Colnect 367833 - European Map Albanian Flag.jpeg - Gone Postal

Stamp of Albania - 1999 - Colnect 186267 - 50th anniversary of NATO.jpeg - Gone Postal

Stamp of Albania - 2008 - Colnect 375120 - NATO emblem and flags of member nations.jpeg - Gone Postal

Stamp of Albania - 2008 - Colnect 375122 - Invitation to join NATO.jpeg - Gone Postal

Stamp of Albania - 2009 - Colnect 182613 - Map of Europe with flags.jpeg - Gone Postal

Stamp of Albania - 2012 - Colnect 376180 - Emblem football European flags and large flag of Poland.jpeg - Gone Postal

Stamp of Albania - 2012 - Colnect 376181 - Emblem football European flags and large flag of Ukraine.jpeg - Gone Postal

Stamp of Albania - 2012 - Colnect 376182 - European Football Championships 2012 Poland and Ukraine.jpeg - Gone Postal

Stamp of Albania - 2012 - Colnect 376183 - European Football Championships 2012 Poland and Ukraine.jpeg - Gone Postal

Stamp of Georgia - 2016 - Colnect 740079 - Connecting with the European Union.jpeg - Gone Postal

Stamp of Georgia - 2018 - Colnect 792544 - 25th Anniversary of Diplomatic Relations with Outside World.jpeg - Gone Postal

Stamp of Georgia - 2018 - Colnect 828919 - 25th Anniversary of Diplomatic Relations with Outside World.jpeg - Gone Postal

Stamp of Georgia - 2020 - Colnect 970711 - Lech Kacyński President of Poland.jpeg - Gone Postal

The Soviet Union 1978 CPA 4839 stamp (Soviet-Polish Space Flight. Transporting Soyuz rocket to launch pad).jpg - Matsievsky

The Soviet Union 1978 CPA 4839 stamp (Soviet-Polish Space Flight. Transporting Soyuz rocket to launch pad).png - Matsievsky

The Soviet Union 1978 CPA 4840 stamp (Soviet-Polish Space Flight. Crystal (Sirena, experimental crystallogenesis in space), space ship).png - Matsievsky

The Soviet Union 1978 CPA 4840 stamp (Soviet-Polish Space Flight. Crystal (Sirena, experimental crystallogenesis in space), space ship).jpg - Matsievsky

The Soviet Union 1978 CPA 4841 stamp (Soviet-Polish Space Flight. Space station, scientific research ship 'Kosmonavt Vladimir Komarov', world map and paths of Salyut 6, Soyuz 29-30).jpg - Matsievsky

The Soviet Union 1978 CPA 4841 stamp (Soviet-Polish Space Flight. Space station, scientific research ship 'Kosmonavt Vladimir Komarov', world map and paths of Salyut 6, Soyuz 29-30).png - Matsievsky

Stamp of Indonesia - 1995 - Colnect 253422 - United Nations Organization.jpeg - Gone Postal

Stamp of Tajikistan - 1996 - Colnect 290053 - New York headquarters.jpeg - Gone Postal

The Soviet Union 1964 CPA 3072 stamp (Socialist countries. 20th anniversary of Polish People's Republic).jpg - Matsievsky

The Soviet Union 1964 CPA 3072 tête-bêche stamp pair (Socialist countries. 20th anniversary of Polish People's Republic).jpg - Matsievsky

The Soviet Union 1964 CPA 3072 stamp (Socialist countries. 20th anniversary of Polish People's Republic).png - Matsievsky

The Soviet Union 1964 CPA 3072 tête-bêche stamp pair (Socialist countries. 20th anniversary of Polish People's Republic).png - Matsievsky

United Nations stamp from Slovakia, 2020.png - Universalis

Stamp of Ukraine b204.jpg - Reader85