1917
1:20k
1917
Corps of Engineers
1:20k
1918
1:20k
1950
United States. Air Force
1:500k
1950
United States. Air Force
1:500k
1952
United States. Air Force
1:500k
1951
United States. Air Force
1:500k
1951
United States. Air Force
1:500k
1875
Asher & Adams
1:1m
1874
Asher & Adams
1:1m