A
- Adélie Land
- Aden Protectorate
- África Occidental Española
- Africa Orientale Italiana
- Afrique Occidentale Française
- Aland Islands
- Alderney
- Anguilla
- Antarctica
- Antártida Argentina
- Antártica Chilena
- Antigua and Barbuda
- Achaean Territory of Antarctica
- Argentina
- Argentine Antarctica
- Armenia
- Ascension (Island)
- Aunus
- Austria
- Australia
- Australian Antarctic Territory
- Australian Capital Territory
B
- Bahamas
- Bahawalpur
- Bahrain
- Balleny Islands
- Bangladesh
- Barbados
- Basutoland
- Bechuanaland
- Belgian Congo
- Belgium
- Belize
- Benin
- Bermuda
- Biafra
- Botswana
- Brasil
- Brasil Correio
- Brazil
- Brecqhou
- British Antarctic Territory
- British Central Africa
- British Columbia
- British East Africa Company
- British Guiana
- British Honduras
- British Hong Kong
- British India
- British Military Administration (BMA)
- British North Borneo
- British Postal Agencies in Eastern Arabia
- British Raj
- British Solomon Islands
- British South Africa Company
- British West Indies
- British Virgin Islands
- Brunei
- Bulgaria
- Burkina Faso
C
- Cabo Juby
- Canada
- Cambodia
- Cameroons
- Canal Zone
- Cape Juby
- Cape of Good Hope
- Captaincy General of the Philippines
- Caribbean
- Caribbean South America
- Cayman Islands
- Ceylon
- Channel Islands
- Chile
- Chilean Antarctic Territory
- China
- Christmas Island
- Cirenaica
- Citta del Vaticano
- Clipperton Island
- Cocos (Keeling) Islands
- Colombia
- Colonia Eritrea
- Colonie Italiane Eritrea
- Colony of Aden
- Commonwealth of the Philippines
- Commonwealth of the Philippines (Japanese Occupation)
- Condominium des Nouvelles-Hébrides
- Condominium New Hebrides
- Confederate States of America
- Congo (Belgian)
- Cook Island
- Costa Rica
- Côte d’Ivoire
- Crete
- Cuba
- Cyrenaica
- Cyrenaica (British Military Administration)
- Cyprus
- Czechoslovakia
D
- Dahomey
- Danish Antilles
- Danish Virgin Islands
- Danish West Indies
- Danmark
- Democratic Republic of Yemen
- Denmark
- Dependency of South Georgia
- Dependency of South Orkneys
- Dependency of South Shetlands
- Deutsche Neu Guinea
- Deutsch-Südwestafrika
- Dominica
- Dominican Republic
- DPR Korea
E
- East Africa Forces
- Easter Island
- Eastern Aden Protectorate
- Eastern Arabia
- Ecuador
- Egypt
- Egypt (British Forces)
- El Salvador
- England
- Eritrea
- Eritrea (British Military Administration)
- Établissements Français d’Océanie
- Estonia
- Ethiopia
- Ethiopie
- Etiopia
- Europa
- European Union
F
- Falkland Islands
- Falkland Islands Dependencies
- Faroe Islands
- Fédération du Mali
- Federation of South Arabia
- Fernando Poo
- Fiji
- Filipinas
- Finland
- Føroyar
- France
- French Dahomey
- French Equatorial Africa
- French Establishments in Oceania
- French Indochina
- French Guiana
- French Guinea
- French Morocco
- French Polynesia
- French Southern and Antarctic Lands
- French Sudan
- French Tunisia
- French Upper Volta
- French West Africa
G
- Galapagos
- Gambia
- Gay and Lesbian Kingdom of the Coral Sea Islands
- German New Guinea
- German South West Africa
- Germany
- German Colonial Empire (German Colonies)
- Ghana
- Gibraltar
- Gilbert and Ellice Islands
- Gilbert and Ellice Islands Protectorate
- Gilbert and Ellice Protectorate
- Gilbert Islands
- Gold Coast
- Gough Island
- Graham Land
- Great Britain
- Greater Antilles
- Greece
- Greenland
- Grenada
- Grenadines
- G.R.I.
- Griqualand (East/West)
- Guadeloupe
- Guianas
- Guinea
- Guam
- Guatemala
- Guernsey
- Guinée Française
- Guyana
- Guyane Francaise
H
- Haiti
- Haute-Volta
- Hawaii (Kingdom)
- Hawaii (Provisional Government)
- Hawaii (Republic)
- Hawaii (Territory)
- Heard Island and McDonald Islands
- Herm
- Herm Island
- Honduras
- Hong Kong (British)
- Hong Kong (China)
- Hungary
- Hutt River Province
I
- Iceland
- Ifni
- Île de Clipperton
- Independent State of Rainbow Creek
- India
- Indochina
- Indochine
- Inini
- Iran
- Ireland
- Isla de Cuba
- Isla de Pascua
- Islamic Republic of Iran
- Islamic Republic of Mauritania
- Island
- Island of Pabay
- Isle of Pabay
- Israel
- Italian Colonial Empire
- Italian East Africa
- Italian Eritrea
- Italian Ethiopia
- Italian Libya
- Italy
- Ivory Coast
J
K
- Kamerun
- Karelia
- Kathiri State of Seiyun in Hadhramaut
- Kibris (See Cyprus)
- Kingdom of Bahrain
- Kingdom of Tonga
- King Edward VII Land
- Kiribati
- Kenya
- Kenya, Uganda and Tanganyika
- Korea
- Kuwait
- Kuzey Kibris (See Northern Cyprus)
- Kyrgyzstan