1987
1:24k
1964
1:250k
1951
United States. Air Force
1:500k
1875
Asher & Adams
1:1m
1926
Ford Motor Company
1:500k
1874
Asher & Adams
1:1m
1775
Jefferys, Thomas
1:2m
1950
United States Post Office Department
1:2m
1944
United States Post Office Department
1:2m
1948
United States Post Office Department
1:2m