Credit: © The Royal Society
    Image number: RS.10881

    Signals for the decimal compass card

    Date
    1855
    Creator
    James Masters Share (1822 - 1895, British) , Naval officer
    Object type
    Archive reference number
    Material
    Dimensions
    height (drawing): 270mm
    width (drawing): 193mm
    Subject
    Content object
    Description
    Diagram showing naval flag signals to be hoisted indicating course according to J.M. Share’s decimal compass card. With inset figures providing examples of course signals.

    Unpublished illustration from the manuscript version of the paper “On a decimal compass card” by James Masters Share in Proceedings of the Royal Society of London, vol.7 (1854-1855), pp.381-382.

    Inscribed above in ink: ‘Code of Compass Signals adapted to the Decimal Card’ and with brief manuscript instructions for their use.

    James Masters Share was not a Fellow of the Royal Society. He was Sailing Master in the sloop HMS Modeste on the Mediterranean Station when this paper was written.
    Associated place
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