O-S (Complete List)

Oman Orange River Colony Pakistan Pakistan Bahawalpur Pakistan-Bahawalpur Palau Palestine Palm Islands Panama Papua New Guinea Paraguay Penrhyn Peru Philippines Pitcairn Islands Poland Portugal Portuguese Colonies Portuguese Guinea Portuguese India Prince Edward Island Puerto Rico Qatar Queensland Redonda Reunion Rhodesia Rhodesia & Nyasaland Roman States Romania Ross Dependency Ruanda-Urundi

Russia Russian Off. - Turkish Empire Rwanda Ryukyu Islands Saar Sahara Samoa San Marino Sarawak Saudi Arabia Scandinavia Schleswig Scotland Senegal Serbia Seychelles Sharjah & Dependencies Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somali Coast Somalia Somaliland Protectorate South Africa South Arabia South Australia South Georgia South Korea South West Africa South West Africa & Namibia

Southern Nigeria Southern Rhodesia Soviet Union Spain Spanish Andorra Spanish Colonies Spanish Guinea Spanish Morocco Spanish Sahara Spanish West Africa Sri Lanka St. Christopher St. Helena St. Kitts St. Kitts-Nevis St. Lucia St. Pierre & Miquelon St. Thomas & Prince Islands St. Vincent St. Vincent Grenadines Straits Settlements Sudan Surinam Swaziland Sweden Switzerland Syria Syria-UAR