1800
Robert Laurie & James Whittle
1:180k
1823
Lucas, Fielding Jr.
1:824k
1872
Fullarton, A. & Co.
1792
Jefferys, Thomas
1:2m
1822
1:2m
1844
Arrowsmith, John
1:887k
1901
Stanford, Edward
1:887k
1775
Jefferys, Thomas
1:2m
1822
Lea, I.
1:2m
1940
Chief of Engineers
1:1m