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    Re: Ebay kollsman periscope sextants
    From: Merlijn Frijda
    Date: 2018 Jun 5, 05:34 -0700

    Thanks for the manuals' links. Very helpful.

    As far as the pendulous versus bubble sextants' ease of use, on land I found the bubble quite easy to use, but have never seen one of the pendulous type. I imagine however the pendulous type may be more durable, as many of the bubble chambers  I've seen had leaked.

       
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