Geographic Subject
Great Britain
176
Egypt
31
China
24
Turkey
18
United States
13
Sudan
9
France
7
Burma
6
Germany
6
Palestine
6
Ethiopia
5
Jordan
5
Mozambique
5
Samoan Islands
5
Cameroon
4
Malawi
4
Portugal
4
Spain
4
Chile
3
East Asia
3
Europe
3
Gibraltar
3
Greece
3
Guatemala
3
Istanbul (Turkey)
3
Kenya
3
Mexico
3
Suez Canal (Egypt)
3
Vanuatu
3
Africa
2
Angola
2
Cambodia
2
Central America
2
Chongqing (China)
2
Colombia
2
Cyprus
2
Iran
2
Iraq
2
Lebanon
2
Morocco
2
Panama
2
Rhodesia and Nyasaland
2
Saudi Arabia
2
Syria
2
Tonga
2
Zambia
2
Africa, East
1
Africa, French-speaking Equatorial
1
Algeria
1
Arabian Peninsula
1
more ...