Catalogue description `Diagram showing the Principal Triangulation for the Ordnance Trignometrical Survey of...
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Reference: | OS 5/27 |
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Description: |
`Diagram showing the Principal Triangulation for the Ordnance Trignometrical Survey of Great Britain and Ireland.' Outline map with trigonometrical points named. 1 inch to 24 miles. |
Note: | Engraved |
Date: | [c?1860] |
Held by: | The National Archives, Kew |
Legal status: | Public Record(s) |
Dimensions: | 68.5 cm x 101.5 cm |
Closure status: | Open Document, Open Description |
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