1952
United States. Air Force
1:500k
1952
United States. Air Force
1:500k
1951
United States. Air Force
1:500k
1895
United States. War Department
1:634k
1928
Spellman, Coreen Mary (1905-1978)
1932
C&GS
1:621k
1929
Ford Motor Company
1:500k
1944
United States. Department of Commerce
1:500k
1914
Kenyon Company
1:1m
1879
U.S. General Land Office
1:760k