£250
By HYDROGRAPHIC OFFICE, Septr. 12th 1855. Large corrections Novr. 1874. Dec. 1886, Dec. 1887, Nov. 1891. Small corrections [to 18]92.
£500
By UNITED STATES HYDROGRAPHIC OFFICE, April 1885. Corrected to May 15 1897.
£10,000
By NORIE, J[ohn] W[illiam], October 1st, 1825. Corrected to 1826.
£250,000
By MERCATOR, Gerard, Anno 1636 - 1638.
West Coast of Ireland
The only known examples of instruments made for an unpublished quarto edition of ‘Dell’Arcano del Mare’
One of the earliest African-American navigational instrument-makers in Massachusetts
Reduction of Baugh’s large-scale map of Shropshire 

