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Summary
| Description |
English: This cannon embedded in the ground just by the Northern Perimeter Road of London Heathrow Airport marks the north western end of General Roy's original base line for setting out the Ordnance Survey triangulation of Great Britain in 1784. The plaque on the base was put in place in 1926 to mark the 200th anniversary of General Roy's birth. The south eastern end of the base line is in Roy Grove at Hampton, on the other side of what was at the time Hounslow Heath |
| Date | |
| Source | From geograph.org.uk |
| Author | Rod Allday |
| Permission (Reusing this file) |
Creative Commons Attribution Share-alike license 2.0 |
| Attribution (required by the license) | Rod Allday / Where it all began! / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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.jpg¶ms=051.479732_N_-000.450350_E_globe:Earth_type:camera_source:geograph-osgb36(TQ07717678)_heading:0.00&language=en){kind=link}
| Object location | | View this and other nearby images on: OpenStreetMap | |
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.jpg¶ms=051.479730_N_-000.450350_E_globe:Earth_class:object_type:object_source:geograph-osgb36(TQ07717678)_heading:0.00&language=en){kind=link}
Licensing
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This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Rod Allday and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Rod Allday
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:57, 9 May 2020 | | 480 × 640 (109 KB) | Ham II | Transferred from geograph.co.uk using [https://tools.wmflabs.org/geograph2commons/ geograph2commons] |
File usage
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Global file usage
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