Region
United States
6
United States --
3
China --
2
Great Britain
2
Argentina
1
Brazil
1
California
1
California --
1
Canada
1
Canada --
1
China
1
Confederate States of America --
1
Czechoslovakia
1
Czechoslovakia --
1
Denmark
1
Finland
1
Germany
1
India
1
Latin America
1
Nevada Count
1
Nevada County (Calif)
1
New Jersey
1
New Jersey --
1
Papua New Guinea
1
Poland
1
Shanghai
1
Shanghai (China)
1
Shanghai (China) --
1
Southern States
1
Sweden
1
West (US)
1
West (US) --
1