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    Re: Davis MK3 & Casio Watch Mod.
    From: Greg Rudzinski
    Date: 2016 Oct 30, 13:09 -0700

    Bob,

    The original MK3 filters for the index mirror generally hold up over time so shouldn't need mylar replacement. The Ebbco plastic sextants have filters which go bad over time and should be replaced as noted in a different previous  thread.

    Greg Rudzinski

       
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