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Parallel rule
Brass protractor
Rule: Wooden parallel rule joined by brass bars.
Protractor and movable arm: Dia. 3.0" (7.7 cm) brass semicircular protractor, graduated 90 - 0 - 90 by 1 degree, with a movable arm 15.75" (40.0 cm) long attached to the upper half of the parallel ruler in a slot along which it slides.
In fitted wooden box which has instructions for use pasted inside the lid.
Rule: Wooden parallel rule joined by brass bars.
Protractor and movable arm: Dia. 3.0" (7.7 cm) brass semicircular protractor, graduated 90 - 0 - 90 by 1 degree, with a movable arm 15.75" (40.0 cm) long attached to the upper half of the parallel ruler in a slot along which it slides.
In fitted wooden box which has instructions for use pasted inside the lid.
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Object Details
| ID: | NAV0620 |
|---|---|
| Type: | Parallel rule |
| Display location: | Not on display |
| Creator: | Worbe, T G |
| Date made: | circa 1890 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 25 mm x 457 mm x 97 mm |