Geographic Subject
Europe
27
Great Britain
26
Germany
20
France
16
United States
12
Sweden
11
Soviet Union
7
Switzerland
7
Netherlands
6
Egypt
5
Prussia (Germany)
5
China
4
India
4
Asia
3
Austria
3
Germany (West)
3
Italy
3
Morocco
3
Bavaria
2
Bosnia and Hercegovina
2
Burma
2
Denmark
2
Europe, Eastern
2
Finland
2
Greece
2
Indonesia
2
Iran
2
Nicaragua
2
Poland
2
Russia
2
Russia (Federation)
2
Thailand
2
6.140
1
Afghanistan
1
Azerbaijan (Iran)
1
Balkan Peninsula
1
Bangladesh
1
Bavaria (Germany)
1
Bremen (Duchy)
1
Bremen (Germany : Duchy)
1
Bulgaria
1
Croatia
1
Czechoslovakia
1
Developing countries
1
Finnland
1
Gdańsk (Poland)
1
Georgia (Republic)
1
Guatemala
1
Hungary
1
Indochina
1
more ...