| Watch them cover the inner surface in area that's clearly visible |
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| Sight level |
Thomas Joseph |
05 Feb 2025 |
| Face sketcher's horizontal reference |
The Washington Post |
03 Feb 2020 |
| Face sketcher's horizontal reference |
LA Times Daily |
03 Feb 2020 |
| Observation level |
Newsday |
28 Sep 2019 |
| Middle of a field of vision |
New York Times |
09 Jun 2018 |
| Middle of a field of vision |
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| Horizontal view |
Wall Street Journal |
24 Oct 2017 |
| Point of view? |
LA Times Daily |
25 Feb 2017 |
| Face sketcher's aid |
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| Face sketcher's aid |
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| Horizontal view |
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| A level. |
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