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Номер объекта
A-288
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Navigational
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Наименование
Sextant
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Создатель
Bird, John
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Описание
Polished brass frame. Index arm moved by hand. Two shades (both red). Index glass adjustment by screw; horizon glass by screw and lever with wing nut and clamping screw. Fixed telescope bracket with sight tube. Fitted mahogany triangular case lined with maroon velvet. Brass latch hook.
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Материал
Signed on the crossbar: "J. Bird London."
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Материал
brass, mahogany, velvet
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Тема
England
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Размерность
|
Imperial(in) |
|
Metric(cm) |
| Height |
|
|
10.5 |
| Width |
|
|
10.5 |
| Depth |
|
|
3.1 |
| Diameter |
|
|
|
| Circumference |
|
|
|
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|
Imperial(in) |
|
Metric(cm) |
| Height |
2 9/16 |
|
6.4 |
| Width |
4 12/16 |
|
12 |
| Depth |
3 |
|
7.5 |
| Diameter |
|
|
|
--------------------------------------------------------------------
|
Imperial(in) |
|
Metric(cm) |
| Height |
4 4/16 |
|
10.7 |
| Width |
9 8/16 |
|
24.1 |
| Depth |
3 2/16 |
|
7.8 |
| Diameter |
|
|
|
