File:3foottheodoliteramsden.jpg
From Infogalactic: the planetary knowledge core
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Summary
3 foot ramsden theodolite from 1791 used during the principal Triangulation of Great Britain
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:05, 13 January 2017 | | 2,057 × 2,474 (3.03 MB) | 127.0.0.1 (talk) | 3 foot ramsden theodolite from 1791 used during the principal Triangulation of Great Britain |
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