1. TRIG
- Reference (shelfmark):
- TRIG
- Title:
- War Office/Ministry of Defence Trigonometrical/Geodetic Library Material
- Scope & Content:
- Survey materials and their derivatives used in the compilation and revision of maps to support the geographical requirements of the United Kingdom government and armed forces. The library primarily comprises survey control items including surveyors' field observations, computations, grid and gra...
- Collection Area:
- Map Collections
- Languages:
- English
- Date Range:
- 1880-2nd half of 20th century
- Extent:
- 77 boxes comprising survey observation books, maps, foolscap folios and technical reports