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    Re: Open a Mk IX bubble sextant
    From: Michael Josefsson
    Date: 2023 Nov 7, 10:14 -0800

    Hi again JPP! 

    I filled my A-12 with the xylene (and boy does it smell!) and could form a decent bubble there. Now for the Mk IX I cannot for the life of me find a screw or a hole where to add the fluid. Do you know if one has to break the shellac to remove the upper (or lower?) part of the bubble chamber? I imagine breaking the shellac can make it leak in the future.

    Or is there a hidden filling hole somewhere?

    Cheers Micke

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