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    Re: Kelvin Hughes Sextant
    From: Norm Goldblatt
    Date: 2014 Nov 22, 10:27 -0800

    Interesting that you mention the telescope mounting adjustment screws. On my Troughton- Simms, it was these very screws that were almost stripped. They are small, brass  (#3 is a close substitute) and since they can be tightened against each other, thread stripping is just waiting to happen. I wonder if in the ageing process, brass gets more brittle and chances of stripping becomes easier as the centuries roll on.

       
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