River Yealm triangulation

Scale: 1:31,180. Triangulation survey of the River Yealm

Object Details

ID: STK223:2/134
Collection: Charts and maps
Type: Chart
Display location: Not on display
Creator: Stokes, John Lort
Date made: 1859-1862
Credit: National Maritime Museum, Greenwich, London. Caird Fund.
Measurements: Sheet: 37.5 cm x 32 cm