Language: English / Material Type: Archives and Manuscripts - British Library Archives and Manuscripts Catalogue Search Results

Reference (shelfmark):: TRIG/13
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Triangulation. Horizontal and Vertical Observation Books (field copies).
Scope & Content:: 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...
Collection Area:: Map Collections
Languages:: English
Date Range:: 1929-1932
Extent:: 30 volumes and 1 page

Reference (shelfmark):: TRIG/14
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Astronomical Observation Books (field copies).
Scope & Content:: 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1929-1933
Extent:: 41 volumes

Reference (shelfmark):: TRIG/15
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Boundary Traverses. Topo[graphical]. Survey Traverse Observation Books (field copies).
Scope & Content:: 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1927-1931
Extent:: 42 volumes

Reference (shelfmark):: TRIG/16
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Boundary Traverses. Topo[graphical]. Survey Traverse Observation Books (field copies).
Scope & Content:: 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...
Collection Area:: Map Collections
Languages:: English
Date Range:: 1928-1929
Extent:: 28 volumes

Reference (shelfmark):: TRIG/17
Title:: 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1929-1931
Extent:: 44 volumes

Reference (shelfmark):: TRIG/18
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. External Detail Traverses. Topo[graphical]. Survey Traverse Observation Books (field copies).
Scope & Content:: 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1927-1929
Extent:: 32 volumes

Reference (shelfmark):: TRIG/19
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Cross-levelling. Level Observation Books (field copies).
Scope & Content:: Level observation books (numbered 18 to 27); some volumes are recorded in traverse books, but the data within are level values. Books 1 to 17 were not present on transfer. However office copies are at TRIG/27 and TRIG/28. Used in the compilation of Geographical Section, General Staff No. 4044,...
Collection Area:: Map Collections
Languages:: English
Date Range:: 1930-1931
Extent:: 10 volumes

Reference (shelfmark):: TRIG/20
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Cross-levelling. Level Observation Books (field copies).
Scope & Content:: Level observation books (numbered 28 to 44); some volumes are recorded in traverse books, but the data within are level values. 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1930-1931
Extent:: 17 volumes

Reference (shelfmark):: TRIG/21
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Primary Triangulation. Angles. Topo[graphical]. Survey Traverse Observation Books (field copies).
Scope & Content:: Traverse observation books numbered P.T.A. 1-18, 20, 21 and 23-33. 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1930-31
Extent:: 31 volumes

Reference (shelfmark):: TRIG/22
Title:: Anglo-Belgian Boundary Commission 1927-1933. Congo-Zambesi Watershed Section. Primary Triangulation. Distances. Traverse Books (field copies).
Scope & Content:: Traverse observation books (numbered P.T.1 to P.T.9). 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.
Collection Area:: Map Collections
Languages:: English
Date Range:: 1930
Extent:: 9 volumes

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