This Item Has Been Sold!
VERY RARE DAVIS PRISM LEVEL II
The attachment on the horizon mirror is to assure
the sextant frame is perpendicular to the horizon at the moment of taking a sight. It guarantees obtaining the correct
Hs (altitude sextant). It is a perfect accessory for a serious student or an advanced navigator seeking something
This is only the third time in over seven
years that we have had a like new example of this nifty gadget available. They are very hard to come by. Made by
Davis Instruments, who are now noted for its weather stations and marine gadgets, at one time had a product line that
was primarily devoted to marine navigation. The original Prism-Level was developed for use on their plastic sextants
which had a rectangular horizon mirror. It was a major advance in making sure that the sextant was perpendicular to the horizon
at the time the sextant's altitude was recorded. The old fashioned way is to rotate your wrist so that the celestial body
subtends an arc which at its lowest point just kisses the horizon which at that point is perpendicular to it. This serves
the same purpose.
With electronic navigation becoming available to everyone starting in the 1970's, the use of sextants began
to wane. As a consequence, Davis discontinued this very useful accessory. If you follow the industry today, there has been
a resurgence in the use of sextants by enthusiastic amateurs as well as professionals who enjoy the sense of accomplishment. One
reason is that CelNav is still a required skill when obtaining advanced ocean going licenses.
is a very rare, nifty, addition to all sextants with 57 mm diameter circular horizon mirrors. That means it will fit C. Plath,
Cassens & Plath, Freiberger and Tamaya sextants.
QUALIFICATIONS: We are one of the few companies still selling navigation instruments that know anything about
them. For purposes of judging whether Joel's opinion counts, he was the editor of the chapter on sextants of the
1977 Edition of "Bowditch", The American Practical Navigator, NAVPUB 9; a member of the U.S. Naval Academy Navigation Symposium
Board, 1975 -1978; the author of a book on marine sextants, Cornell Maritime Press,1975, and the founding president of Nautech
Maritime Corporation which partnered with Tamaya of Japan in the introduction of the MS 733 Spica, the MS 833, Jupiter, MS
933 Venus sextants and the famous NC-2 navigation computer, in the U.S. market. Joel is a retired Master Mariner,
and held a U.S. Navy "D" Qualification as a Senior Skipper - Oceans. From 1995 until 2001, he was a Varsity Offshore Sailing
Team Coach at the U.S. Naval Academy.
FLAT RATE SHIPPING & PACKING to 48 contiguous States $10.00
OUR UNCONDITIONAL NO NONSENSE
GUARANTEE: If not completely satisfied with your purchase it may be returned within five days of receipt
in its original packaging if without damage. Return items must be insured for their full value. Only a prior email authorization from
us for the return is required. Shipping charges are included in this offer if an error is due to our
International buyers welcome,
but should inquire first. We have satisfied customers in Argentina, Australia, Austria, Belgium,
Bermuda, British Virgin Islands, Canada, Chile, China, Czech Republic, Democratic Republic of Congo, Denmark, Estonia,
England, France, Germany, Greece, Holland, Hong Kong, Hungary, Iceland, Ireland, Israel, Italy, Japan, Kuwait, Latvia, Malaysia,
Martinique, Mexico, New Zealand, Norway, Nova Scotia, Panama, Poland, Portugal, Puerto Rico, Romania, Saudi Arabia,
Scotland, Singapore, Spain, Sweden, Switzerland, Thailand, Turkey, United Arab Emirates, USVI and the Eastern Caribbean.
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