File:Bronze Age muller or whetstone (plan) (FindID 190864).jpg
Original file (1,280 × 960 pixels, file size: 484 KB, MIME type: image/jpeg)
Captions
Summary[edit]
Bronze Age muller or whetstone (plan) | |||
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Photographer |
Royal Institution of Cornwall, Anna Tyacke, 2007-08-25 12:53:10 |
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Title |
Bronze Age muller or whetstone (plan) |
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Description |
English: Greenstone (epidiorite or dolerite) whetstone or muller with two worked edges, probably used to polish metal, although the base may also have been used as a rubbing stone, to grind grain.
The muller is sub-oval in plan, with one rounded end and one flat, where the edge is slightly damaged. The stone is sub-triangular in section, flat on the side that was used for rubbing, and also worked on the other two oblique faces, where it was used instead as a base for polishing metal implements. The muller base would have been used with a larger saddle quern to grind grain between the stones to make flour. The shape of the muller suggests that it was probably made from a local beach cobble. Jones (2002) illustrates similar examples from Callestick on pages 29 & 32, Figs.12-13, Nos.43 & 95 which are dated to the Later Bronze Age, c.1100-700 BC. Nowakowski (1991) illustrates a similar elvan example from Trethellan on page 142, Fig.57, No.88, which dates from the Middle Bronze Age, c.1500-1200 BC. |
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Depicted place | (County of findspot) Cornwall | ||
Date | between 2150 BC and 700 BC | ||
Accession number |
FindID: 190864 Old ref: CORN-DC10C1 Filename: DSCN3875.JPG |
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Credit line |
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Source |
https://finds.org.uk/database/ajax/download/id/148073 Catalog: https://finds.org.uk/database/images/image/id/148073/recordtype/artefacts archive copy at the Wayback Machine Artefact: https://finds.org.uk/database/artefacts/record/id/190864 |
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Permission (Reusing this file) |
Attribution-ShareAlike License | ||
Other versions |
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Licensing[edit]
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:15, 22 January 2017 | 1,280 × 960 (484 KB) | Fæ (talk | contribs) | Portable Antiquities Scheme, CORN, FindID: 190864, bronze age, page 142, batch count 2493 |
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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.
Camera manufacturer | NIKON |
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Camera model | E4500 |
Exposure time | 10/1,261 sec (0.0079302141157811) |
F-number | f/3.3 |
ISO speed rating | 100 |
Date and time of data generation | 15:30, 20 August 2007 |
Lens focal length | 10.7 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E4500v1.2 |
File change date and time | 15:30, 20 August 2007 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:30, 20 August 2007 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.8 APEX (f/2.64) |
Metering mode | Center weighted average |
Light source | Tungsten (incandescent light) |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |