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Номер объекта
M-102
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Drawing Tool
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Наименование
Drafting Instrument
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Название
Trigonometer part: t-square
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Создатель
Unidentified
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Описание
T-square M-102 fits onto sector M-93 to form one instrument. T-square with trapezoidal stock; inner (bar side) edge has shank that would fit in a side groove on a drawing or plane table, enabling the T-square to slide along the edge. Stock has decorative engraving. Bar sits on top of stock and is riveted in place. Upper edge of bar is sloped to form straight edge. A scale of equal parts (0-580, by 1) reads to the sloped upper edge.
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Материал
Unsigned.
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17th century
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Материал
brass
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Тема
Italy or England
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Размерность
|
Imperial(in) |
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Metric(cm) |
| Height |
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0.7 |
| Width |
|
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32.2 |
| Depth |
|
|
7.1 |
| Diameter |
|
|
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| Circumference |
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|
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|
Imperial(in) |
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Metric(cm) |
| Height |
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|
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| Width |
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|
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| Depth |
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| Diameter |
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