£6,000
By SPEER, Captain Joseph Smith, Publish'd as the Act directs June 14th, 1773.
£15,000
By NASA, 2 September 1976.
£25,000
By ROCQUE, John, [1747].
£3,000
By HORSBURGH, James and INGLIS Sir Hugh, 13 November, 1812.
£5,000
By LAKE SURVEY BRANCH, ARMY MAP SERVICE, August 1945.


