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    Re: Mysterious symbol
    From: John Huth
    Date: 2010 Oct 14, 09:12 -0400
    Ah, thank you.   You can tell I'm not from the UK.   Here I was thinking it was something relatively ancient.

    On Wed, Oct 13, 2010 at 12:44 PM, Douglas Denny <douglas.denny{at}btopenworld.com> wrote:

    This mark is an Ordnace Survey mark: normally used by surveyors to mark a level or height. The curved bit is normally straight. They are to be found in many places, for example on trig points on the brass plate. The top flat is the level/height.

    Douglas Denny.
    Chichester. England.
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