Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed and Meridian sections. Folders 54-58.
Scope & Content:
Survey observations and computations along the Northern Rhodesia-Belgian Congo boundary (Congo-Zambesi and Mpanta Meridian sections). Includes fold-out plans. Comprises: Folder 54. Technical Report Folder 55. Record of Observations Folder 56. Final Results. Ruling and Minor Triangulation Folder ...
Records of survey observations, computations, station descriptions and a technical report along the Northern Rhodesia-Belgian Congo boundary. Includes some fold-out maps. Comprises: Folder 63. Traverse Computations Folder 64. Cassini Computations Folder 65. Astro. at Junction of Arc and Watershe...
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...
30 observation books (numbered 31 to 63; there is an additional 39a, and 57 to 60 were not present on transfer). Book 1 also contains an additional loose page of 'Measurements etc. of Beacons' (21 x 33cm). Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets at sca...
Astronomical observation books (numbered 1 to 41). Boundary section extends to Angola tripoint. Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets at scale 1:250,000 dated 1941 filed at Maps X.6262.
42 traverse observation books (numbered A1 to A40; there is no book 5, but additional books 4-5, 5-6 and 33a) labelled 'field book' or 'field copy'. Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets at scale 1:250,000 dated 1941 filed at Maps X.6262.
28 traverse observation books (numbered A41 to A69) labelled 'field book' or 'field copy'. Traverse observation books A70 to A98 were not present on transfer. However, office copies of these are filed at TRIG/26. Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets...
Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Boundary and Triangulation Point Traverses. Topo[graphical]. Survey Traverse Observation Books (field copies).
Scope & Content:
Boundary traverse observation books (numbered A.99 to A.131). Traverses from triangulation points to boundary pillars, observation books (numbered B1 to B11). Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets at scale 1:250,000 dated 1941 filed at Maps X.6262.
32 observation books (numbered C1 to C32); all are traverse books except C18 where observations were recorded in a horizontal and vertical angle book. Used in the compilation of Geographical Section, General Staff No. 4044, 7 sheets at scale 1:250,000 dated 1941 filed at Maps X.6262.