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Date: |
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Description: | Elias Allen fecit
Sector
Graduations: On upper / lower surface both legs graduated 0-90 inscribed "Sines" "Siysrf?"
On other surface both legs graduated 0-20 and 0-10 inscribed "E Parts"
Each outer edge graduated 10-70. Inner edges 10-100. Folding rule one surface graduated 1-12, 90-0-90, the other surface carries a plane scale. Two square holes at the end of each leg for sights; punched identification marks against each hole. Two threaded holes.
Inscription.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | sectors | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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