File:Ordnance Survey Drawings - Helston, Cornwall (OSD 3).jpg
Original file (5,770 × 3,618 pixels, file size: 4.23 MB, MIME type: image/jpeg)
Captions
Helston, Cornwall (OSD 3) | ||||||||||||||||||||||||
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Artist |
Dawson, Robert - Draughtsman |
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Title |
Ordnance Survey Drawings: Helston, Cornwall (OSD 3) |
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Object type | manuscript map | |||||||||||||||||||||||
Description |
English: This drawing is attributed to Robert Dawson (1771-1860), a first-class Royal Military Draughtsman and Surveyor. He was also an influential teacher at the Tower of London Drawing Room, where he had been employed since the age of eighteen. The map is oriented unconventionally, with north to the left rather than at the top. Consequently, Lizard Head, the southernmost point of Great Britain, lies to the right of the plan. The boundaries of the area surveyed are coastal from Porthleven to Falmouth Bay, but at Lower Trenoweth they leave the coastline and follow the roads inland. The word 'flag' is written in several places (the tip of the Lizard, for example) to mark points between which Dawson took angular measurements to pinpoint topographical features. Similarly Signal Staff points are noted around the coast at Black Head and below Mullion Island. Helston was a tin-mining town. Copper and tin mines in the area are indicated by symbols..
This image has been georeferenced.
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Language | English | |||||||||||||||||||||||
Date |
1811 date QS:P571,+1811-00-00T00:00:00Z/9 |
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Medium | Pen and ink on paper | |||||||||||||||||||||||
Dimensions |
height: 300 mm (11.81 in); width: 470 mm (18.50 in) dimensions QS:P2048,300U174789 dimensions QS:P2049,470U174789 |
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Collection |
institution QS:P195,Q23308 |
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Accession number |
Maps OSD 3 |
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Credit line | British Library | |||||||||||||||||||||||
Notes |
Scale 2 inches : 1 mile ( 1: 31680). Please note that the British Library provides these digital files "as-is"; materials will not be rephotographed under this programme. If resupply of files is required, the requestor will be required to purchase them at the standard rate. |
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References | http://www.bl.uk/onlinegallery/onlineex/ordsurvdraw/h/002osd000000018u00002000.html (English) | |||||||||||||||||||||||
Source/Photographer |
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Permission (Reusing this file) |
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:31, 26 September 2013 | 5,770 × 3,618 (4.23 MB) | LibraryBot (talk | contribs) | {{subst:User:Andrew Gray/OSD|ID= 002OSD000000018U00002000 |OSD_NUM= OSD 3 |MEDIUM= Pen and ink on paper |TITLE= Helston, Cornwall |CREATOR= Dawson, Robert - Draughtsman |YEAR= 1811 |DESCRIPTION= This drawing is attributed to Robert Dawson (1771-1860), ... |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title |
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Camera manufacturer | Phase One |
Camera model | P65+ |
Author | 11861 |
Exposure time | 40,370/2,422,199 sec (0.016666673547467) |
F-number | f/12 |
ISO speed rating | 50 |
Date and time of data generation | 11:47, 11 January 2012 |
Lens focal length | 55 mm |
Headline | Maps OSD 3 |
Credit/Provider | The British Library |
Source | The British Library |
Short title |
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Copyright holder |
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Usage terms |
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City shown | London |
Width | 8,774 px |
Height | 5,594 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 200 dpi |
Vertical resolution | 200 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 09:31, 17 January 2012 |
Exposure Program | Manual |
Exif version | 2.2 |
Date and time of digitizing | 11:47, 11 January 2012 |
APEX shutter speed | 5.90689 |
APEX aperture | 7.1699 |
APEX exposure bias | 0 |
Light source | Other light source |
Color space | Uncalibrated |
File source | Digital still camera |
Scene type | A directly photographed image |
Image width | 5,770 px |
Image height | 3,618 px |
Serial number of camera | EJ031777 |
Lens used | Schneider Kreuznach LS 55mm f/2.8 |
Date metadata was last modified | 09:31, 17 January 2012 |
Province or state shown | England |
Country shown | GBR |
Sublocation of city shown | St Pancras |
IIM version | 4 |
Structured data
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0.01666667354746657892 second
12
55 millimetre
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