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    Re: A-12 Bubble Sextant (Octant)
    From: Geoffrey Kolbe
    Date: 2010 Sep 25, 11:20 +0100

    Jean-Philippe wrote:
    >The correct Bristol wrench size to fill the bubble assembly is the
    >third largest one available in the SS-508 SPLINE KEY KIT. It is the
    >4 flutes key number S-076-4. You can order this small kit (9 keys)
    >for 16$-20$ from Max Gain Inc (very friendly people) here;
    >http://www.mgs4u.com/Bristol-spline-L-keys.htm#ss508.
    
    That is most useful, thanks for that. I immediately ordered a set. My
    current Bristol key for opening up the bubble chamber is one I
    fashioned myself out of an old bradall, which has served very well,
    but it would be better to have the correct thing.
    
    Geoffrey Kolbe
    
    
    
    
    

       
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