• Travel, Science and Natural Hi auction at Christies

    Sale 5489

    Travel, Science and Natural History

    22 April 2010, London, South Kensington

  • Lot 57

    A LARGE SINGLE-SIDED BRASS QUADRANT

    OTTOMAN TURKISH, LATE 19TH CENTURY

    Price Realised  

    Estimate

    A LARGE SINGLE-SIDED BRASS QUADRANT
    OTTOMAN TURKISH, LATE 19TH CENTURY
    unsigned and undated, the brass quadrant fixed onto a wooden support, carrying an engraved sexagesimal triginometric grid, punctuated with the usual geometrically arranged dots, inscriptions to the edges.
    12½in. (31cm.) radius


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    A larger instrument than the more commonly seen wooden examples. Possibly one of a pair, and of a sufficiently large size to suggest it was intended for accurate use (perhaps in an observatory setting) rather than portability.

    Special Notice

    VAT rate of 5% is payable on hammer price and at 17.5% on the buyer's premium.