Geographic Subject
Germany
131
Sweden
121
Germany (West)
68
Netherlands
60
Switzerland
49
France
41
Finland
19
Prussia
12
4.050
10
England
9
China
8
Great Britain
8
Kenya
8
United States
8
Developing countries
7
Iran
7
4.210
6
Europe
6
Zurich
6
Greece
5
Japan
5
Soviet Union
5
Tanzania
5
Zurich (Canton)
5
Bavaria
4
Germany (East)
4
India
4
Norway
4
Austria
3
Brazil
3
Colombia
3
Denmark
3
Graubünden
3
Serbia
3
Spain
3
Suisse
3
4.280
2
Africa
2
Africa, North
2
Algeria
2
Argentina
2
Baden
2
Berlin
2
Cuba
2
Czech Republic
2
Czechoslovakia
2
Estonia
2
Ethiopia
2
Gaza Strip
2
Göteborg
2
more ...