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Catalogue description Primary Triangulation Figure 2 1936: triangulation diagram from the Primary...
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| Reference: | OS 51/18 |
|---|---|
| Description: |
Primary Triangulation Figure 2 1936: triangulation diagram from the Primary Triangulation of Great Britain observed 1936. Figure 2 taken from the group of observations covering the area described in Appendix 10 of 'History of the Retriangulation of Great Britain 1935-1962' |
| Date: | 1950 Jan 01-1968 Dec 31 |
| Held by: | The National Archives, Kew |
| Former reference in its original department: | 17 |
| Legal status: | Public Record(s) |
| Closure status: | Open Document, Open Description |
| Record opening date: | 01 January 1999 |
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