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Object number
W-160
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Classification
Drawing Tool
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Object name
Protractor
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Title
Protractor: Rectangular
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Creator
Cail, John
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Description
Rectangular protractor very similar to W-115. Ruled straight edge on (a) is oddly numbered in equal parts 4-0-16. On (b), the 1/2 inch and 1/4 inch diagonal sections of the lower scale are reversed (compared to W-115). Scale of chords on (b) is marked, but not labelled as such.
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Inscription/Sig.
"CAIL NEWCASTLE ON TYNE".
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Material
ivory
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Place Of Prod.
England
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Dimensions
|
Imperial(in) |
|
Metric(cm) |
| Height |
|
|
0.2 |
| Width |
|
|
14 |
| Depth |
|
|
4.2 |
| Diameter |
|
|
|
| Circumference |
|
|
|
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Frame
|
Imperial(in) |
|
Metric(cm) |
| Height |
|
|
|
| Width |
|
|
|
| Depth |
|
|
|
| Diameter |
|
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