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Nautical instruments

Octant, two mirrors – England, early 19th century

Very fine octant of ebony in original stair stepped case of oak with lock and little key. The inset scale of ivory reads from 0 to 105 degrees, nice engraved by hand. This octant is identical to the octants sold by D. McGregor in Glasgow.

Catalog: NM.1-22
Date: 1820-1850
HWL case: 13×33,8×31,2 cm (5,1×13,3×12,3 in)
HW octant: 30,5×25,5 cm (12×9,8 in)
Radius (rotation axis till nonius): 24,5 cm (9,5 in)
Signed: not signed, probably D. McGregor, Glasgow
Origin: England
Condition: perfect and complete, minor repair on the bottom of the case

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