904 selected
- Abkhasia
- Abkhasia - Illegal Stamps
- Abu Dhabi
- Aden
- Afars and Issas
- Afghanistan
- Afghanistan - Illegal Stamps
- Aitutaki
- Ajman
- Ajman - Illegal Stamps
- Ajman - Manama
- Åland (Aland)
- Aland (Åland)
- Åland - Jul stamps (Aland - Jul Stamps)
- Aland - Jul Stamps (Åland - Jul stamps)
- Alawite State
- Albania
- Albania - Cinderella
- Albania - Korçë
- Alderney
- Alexandretta
- Alexandria
- Algeria
- Allenstein
- Allied Occupation - Germany
- Allied Occupation - Germany [American and british zone]
- Allied Occupation - Germany [French zone]
- Allied Occupation - Germany [Soviet zone]
- Allied Occupation - Italy
- Andorra - French
- Andorra - Spanish
- Angola
- Angola - Illegal Stamps
- Angra
- Anguilla
- Anjouan
- Annam & Tonkin
- Antigua
- Antigua and Barbuda
- Antigua and Barbuda - Redonda
- Argentina
- Armenia
- Aruba
- Ascension Island
- Australia
- Australia - Hutt River - Cinderella
- Australian Antarctic Territory
- Austria
- Austria - Local post
- Austria-Hungary - Bosnia and Herzegovina
- Austria-Hungary - Military mail
- Austria-Hungary - Military mail Italy
- Austria-Hungary - Military mail Montenegro
- Austria-Hungary - Military mail Romania
- Austria-Hungary - Military mail Serbia
- Azerbaijan
- Azerbaijan - Nakhchivan - Illegal Stamps
- Azores
- Baden
- Baden - French zone
- Bahamas
- Bahawalpur
- Bahrain
- Bangladesh
- Barbados
- Barbuda
- Basutoland
- Batumi
- Batumi - Illegal Stamps
- Bavaria
- Bechuanaland
- Belarus
- Belgian Congo
- Belgian Congo [1886-1908] - Free State
- Belgium
- Belgium – Eupen
- Belgium – Eupen and Malmedy
- Belgium - Malmedy
- Belgium [1916-1922] - Occupation of German East Africa
- Belgium [1919-1920] - Occupation of the German Reich
- Belize
- Belize - Cayes
- Benin
- Benin - Illegal Stamps
- Bergedorf
- Berlin
- Bermuda
- Bhutan
- Biafra
- Bohemia and Moravia
- Bolivia
- Bophuthatswana
- Bosnia and Herzegovina
- Bosnia and Herzegovina - Croatian Post
- Bosnia and Herzegovina - Serbian Post
- Botswana
- Brazil
- Bremen
- British Antarctic Territory
- British Central Africa
- British Columbia and Vancouver Island
- British East Africa
- British East Africa and Uganda
- British East Africa Company
- British Guiana
- British Honduras
- British Indian Ocean Territory
- British South Africa Company
- British Virgin Islands
- Brunei
- Brunei - Occupation by Japan
- Brunswick
- Bulgaria
- Bulgaria [1916-1917] - Occupation of Romania
- Burkina Faso
- Burkina Faso - Illegal Stamps
- Burma (Myanmar)
- Burma - Occupation by Japan
- Burundi
- Burundi - Illegal Stamps
- Cambodia (Khmer Republic)
- Cameroon
- Canada
- Cape Juby
- Cape of Good Hope
- Cape Verde
- Cape Verde - Illegal stamp issues
- Caribbean Netherlands
- Carinthia
- Carpatho-Ukraine
- Cavalle (Greece - Cavala [French postoffice])
- Cayman Islands
- Central African Republic / Empire
- Central African Republic / Empire - Illegal Stamps
- Central Lituania
- Ceylon (Sri Lanka)
- Chad
- Chad - Illegal Stamps
- Chile
- Chili - Occupation of Peru
- China - British post offices
- China - Central China
- China - East China
- China - French post offices
- China - German post offices
- China - Italian post offices
- China - Japanese post offices
- China - North China - Occupation by Japan
- China - Northeast China
- China - Northern China
- China - Northwest China
- China - People's Republic
- China - Russian post offices
- China - Shanghai and Nanjing - Occupation by Japan
- China - South China
- China - Southwest China
- China [1878-1949]
- Christmas Island
- Cilicia (France [1919-1921] - Occupation of Turkey - Cilicia)
- Ciskei
- Cocos (Keeling) Islands
- Colombia
- Colombia - Antioquia
- Colombia - Bogota
- Colombia - Bolivar
- Colombia - Boyaca
- Colombia - Cucuta
- Colombia - Cundinamarca
- Colombia - Medellin
- Colombia - Santander
- Colombia - Tolima
- Comoros
- Comoros - Illegal Stamps
- Congo-Brazzaville
- Congo-Brazzaville - Illegal Stamps
- Congo-Kinshasa (Zaïre)
- Congo-Kinshasa - Illegal Stamps
- Cook Islands
- Costa Rica
- Côte Française des Somalis (Somali Coast - French Protectorate)
- Crete
- Crete - Austrian post offices
- Crete - French post offices
- Crete - Italian post office [Chania]
- Croatia
- Croatia - Cinderella
- Croatia [1991-1997] - Republic of Serbian Krajina
- Cuba
- Cuba - Spanish colony
- Curaçao
- Cyprus
- Cyrenaica
- Czechia
- Czechoslovakia
- Czechoslovakia - Local revolution issues
- Czechoslovakia - Voting area East-Silesia
- Dahomey
- Danish West Indies
- Danzig
- Danzig - Polish post office
- Dédeagh
- Denmark
- Denmark - Jul stamps
- Diego Suarez
- Djibouti
- Djibouti - Illegal Stamps
- Dominica
- Dominican Republic
- Dubai
- Dutch East Indies
- East African Community (Kenya-Uganda-Tanganyika)
- East Timor
- Eastern Germany (GDR)
- Eastern Rumelia
- Ecuador
- Ecuador - Cinderella
- Egypt - Occupation of Palestine
- Egypt - U.A.R.
- El Salvador
- Elobey, Annobon & Corisco
- Epirus
- Equatorial Guinea
- Equatorial Guinea - Illegal Stamps
- Eritrea
- Eritrea - Illegal Stamps
- Estonia
- Estonia - Jul stamps
- Eswatini (Swaziland)
- Ethiopia
- Falkland Islands
- Falkland Islands - Dependencies
- Falkland Islands - South Georgia
- Fantasy country
- Faroe Islands
- Faroe Islands - Jul stamps
- Federation of South Arabia
- Fernando Poo
- Fezzan
- Fiji
- Finland
- Finland - Jul stamps
- Finland - Occupation of Aunus
- Finland - Occupation of East Carelia
- Fiume
- Fiume - Occupation of Arbe and Veglia (1920)
- France
- France - Colonies [general issues]
- France [1919-1921] - Occupation of Turkey - Cilicia (Cilicia)
- France [1919] - Occupation of Hungary - Arad
- France [1920] - Occupation of Castellorizo
- Not filled in