1. TRIG/12
- Reference (shelfmark):
- TRIG/12
- Title:
- Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Triangulation. Horizontal and Vertical Observation Books (field copies) and Index of Observation Books.
- Scope & Content:
- 30 observation books (numbered 1 to 30). Book 1 also contains an additional 18 loose pages of observations (16 x 23cm) and 1 page of 'Beacon Dimensions' (33 x 21cm, recto and verso). Office copies of books 1 to 20 are filed at TRIG/25. 1 index book titled 'Index of Observation Books Showing C...
- Collection Area:
- Map Collections
- Languages:
- English
- Date Range:
- 1927-1930
- Extent:
-
31 volumes and 19 pages