Diagram shewing the principal triangulation for the Ordnance Survey of Great Britain and Ireland
Diagram shewing the principal triangulation for the Ordnance Survey of Great Britain and Ireland [cartographic material]
, Scale 1:1584000
- S.l. s.n. n.d
- 1 map cloth backed 83 x 58 cm.
Map is very brittle and there are some areas of loss to the edges.
Great Britain--1707-
Map is very brittle and there are some areas of loss to the edges.
Great Britain--1707-