A 19th-Century electrum and boxwood blade protractor,

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A 19th-Century electrum and boxwood blade protractor,
signed J. BASIRE JUNES, and further engraved Registered Aug 4th 1847, No. 1159, with finely engraved scale, the adjustable blades with mountings (one missing), contained in a fitted mahogany case -- 20¾in. (52.7cm.) wide

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