Of unusual form, the actual compass / sundial instrument is fixed into the mahogany ebonized case. The three adjustable levelling screws protrude through the bottom of the case allowing the user to level the sundial, as normal, but within its case. The blackened brass ring is fixed to the case and incorporates two bubble levels at 90 degree intervals. The silvered chapter ring signed, ‘Charles Nephew & Co., Calcutta’, in mint condition as is latitude bar and dial. The
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