Triangulation (Trig) Station number SU/31/T419. Trig name: Sway Tower: tertiary mark. National Grid reference: SZ(40)/29 …

Description: Triangulation (Trig) Station number SU/31/T419. Trig name: Sway Tower: tertiary mark. National Grid reference: SZ(40)/29 (10 km square at 1:25000 scale) or SZ 2796 (1 km square at 1:2500 scale). Missing at transfer.

Date: 01/01/1935 - 31/12/2008

Last import: September 11, 2017