1972
1:24k
1968
1:24k
1955
1:24k
1952
United States. Air Force
1:12k
1951
United States. Air Force
1:500k
1959
1:24k
1952
United States. Air Force
1:500k
1896
Van Hise, C.
1:13k
1952
United States. Air Force
1:500k
1895
United States. War Department
1:634k