- Great Britain
- Great Britain Offices in China
- Great Britain Offices in Morocco
- Aden
- Aitutaki
- Antigua
- Ascension
- Australia / New South Wales
- Australia / Queensland
- Australia / South Australia
- Australia / Tasmania
- Australia / Victoria
- Australia / Western Australia
- Australia
- Bahamas
- Bahrain
- Barbados
- Basutoland
- Batum
- Bechuanaland
- Bermuda
- British Central Africa
- British East Africa
- British Guiana
- British Honduras
- Brunei
- Burma
- Cameroons
- Canada / British Columbia and Vancouver Island
- Canada / Newfoundland
- Canada
- Cape of Good Hope
- Cape of Good Hope / Mafeking
- Cayman Islands
- Ceylon
- Cook Islands
- Crete
- Cyprus
- Dominica
- East Africa and Uganda Protectorate
- Egypt
- Falkland Islands
- Falkland Islands Dependencies
- South Georgia: Falkland Islands Dependencies
- Fiji
- Gambia
- Gibraltar
- Gilbert and Ellice Islands
- Gold Coast
- Grenada
- Griqualand West
- Hong Kong
- India
- India / Dungarpur
- India / Jind
- India / Orchha
- Ireland
- Jamaica
- Jordan
- Kenya, Uganda and Tanganyika
- Labuan
- Lagos
- Leeward Islands
- Madagascar
- Malaya (Federated States)
- Malaya / Johore
- Malaya / Kelantan
- Malaya / Pahang
- Malaya / Perak
- Malaya / Selangor
- Malaya / Trengganu
- Maldive Islands
- Malta
- Mauritius
- Mesopotamia
- Montserrat
- Natal
- Nauru
- Nevis
- New Britain
- New Guinea
- New Hebrides
- New Republic
- New Zealand
- Niger Coast Protectorate
- Nigeria
- Niue
- North Borneo
- North West Pacific Islands
- Northern Nigeria
- Northern Rhodesia
- Nyasaland Protectorate
- Oman (British Postal Agencies In Eastern Arabia)
- Orange River Colony
- Papua New Guinea
- Penrhyn Island
- Rhodesia
- St. Christopher
- St. Helena
- St. Kitts-Nevis
- St. Lucia
- St. Vincent
- Samoa
- Sarawak
- Mauritius / Used in the Seychelles
- Seychelles
- Sierra Leone
- Solomon Islands
- Somaliland Protectorate
- South Africa
- South-West Africa
- Southern Nigeria
- Southern Rhodesia
- Straits Settlements
- Tanganyika
- Tobago
- Togo
- Tonga
- Transvaal
- Trinidad
- Trinidad and Tobago
- Tristan Da Cunha
- Turks Islands
- Uganda
- Virgin Islands
- Zanzibar
- Zululand