Hill sketching
Hill sketching reduced from six inch to one inch to a mile by photography for the engraver. (to accompany) Report on the Ordnance Survey of the United Kingdom for 1855-56. (with) Ordnance Survey. Treasury minute, dated 18 May 1855, and previous papers, relating to the Ordnance Survey. Session 1856.
David RumseyGreat Britain. Ordnance Survey
1857
1857
Ordnance Survey
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