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| Field | Search term | Example |
| Asset title | title: | title:pony |
| Asset title and keywords | ~ | ~pony |
| Asset description text | description: | description:london |
| Agency prefix | prfx: or $ | prfx:lal or $LAL |
| Asset id | imageid: or # | imageid:250297 or imageid:[2500 TO 4000] or #1551 |
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| Medium | medium: | medium:oil |
| Century | century: | century:20th |
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| Year | year: | year:1850 or year:[1700 TO 1800] |
IMAGE number
BL3290806
Image title
An octant. The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation.
Location
Image description
Photo credit
From the British Library archive / Bridgeman Images
| Dimension [pixels] | Dimension in 300dpi [mm] | File size [MB] | |
|---|---|---|---|
| Large | 4680 × 3974 px | 396 × 336 mm | 11.4 MB |
| Medium | 1024 × 870 px | 87 × 74 mm | 1.1 MB |
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