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What Is This???

Discussion in 'Off Topic Threads' started by avery53, May 4, 2013.

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  1. avery53

    avery53 Member

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    Jan 29, 1998
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    I picked this up at a yard sale about 30 yrs ago, and just rediscovered it in my garage. Is is from a ship, used for surveying, etc? It is made of very heavy brass.

    Thanks
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  2. avery53

    avery53 Member

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    Location:
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  3. chuckie68

    chuckie68 Active Member

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    A compass that is correctable for deviation from true north.
     
  4. avery53

    avery53 Member

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    Location:
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    What was it used on?
     
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