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    Re: eBay item 7302517075 (Ends Feb-27-05 13:01:56 PST) - Sextant Simex Mariner Japanese
    From: Mike Burkes
    Date: 2005 Feb 21, 10:55 -0800
    Hi Alex I will try and answer questions and any corrections, additions, etc. can be supplied by List members Joel Jacobs, Ken Gebhart of Celestaire,
    and others.
    a) The word " Simex" originates from Capt Svend T Simonsen founder of the defunct Coast Navigation School in Santa Barbara, Ca. and author of  "Coastwise and Blue Water Navigation" ISBN 0-13-809970-7. He essentially contracted with Tamaya to supply the sextants for the school.
    Highly resembles Tamaya "Jupiter".
    b) The shades are Polaroid filters from pg 241 of his book in that they are single units and have to be rotated to adjust for filtering and dispenses with the individual shade units. Also has a separate astigmatizer lens which transforms the image of a star into a streak of light which according to the book eliminates swinging the arc. I have not used the astigamatizer in that manner but sounds too  good to be true! That can be a subject of further discussion from the List along with Adm Davies' " Prism Level"!!
    c) Do not know metal composition but being "essentially a Tamaya" I would venture a guess a combination of metals.
    Hope this helps and the above folks can supply, correct, and/or amend the info. Please keep me informed and thanks!
    Mike Burkes
    ----- Original Message -----
    Sent: Monday, February 21, 2005 9:34 AM
    Subject: Re: eBay item 7302517075 (Ends Feb-27-05 13:01:56 PST) - Sextant Simex Mariner Japanese

    Looks interesting indeed,
    Could you explain me:
    a) What is "Simex" and how is it related to Tamaya?
    b) What these unusual shades are? They look very
    different from the "standard" 3+4 shades.
    c) Is it aluminium, brass, or combined (like Tamayas)?

    On Mon, 21 Feb 2005, Mike Burkes wrote:

    > Hi folks!
    > Superb deal on a superb sextant! I have one and can attest to it's quality! Essentialy a Tamaya. Good scopes and filters!
    > Thanks!
    > Mike Burkes
    > http://cgi.msn.ebay.com/ws/eBayISAPI.dll?ViewItem&category=37971&item=7302517075&rd=1
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