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    Re: Sextant certificate
    From: Alexandre Eremenko
    Date: 2023 Apr 18, 22:59 +0000

    It is mainly C. Plath and Cassens-Plath which issue such certificates.
    If I remember correctly they mean by this that the errors do not exceed 0'2,
    but I do not have an exact reference where this is claimed.
    
    Alex.
    
    

       
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