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Subject (Region)
- United States5
- Washington (D.C.)2
- Alaska, Department and District of (1867-1912)1
- Antarctica1
- Arctic1
- Arlington (Arlington County), Virginia1
- Florida1
- Great Britain1
- Greenland1
- Isthmus of Panama1
- Isthmus of Tehuantepec1
- Key West1
- Key West (Fla.)1
- Mexico1
- Nicaragua1
- Nicaragua Canal (Nicaragua)1
- North Pole1
- Panama Canal (Panama)1
- Russia (to 1921)1