Nautical Antiques & Marine Art at Land and Sea Collection™ Dive Helmets, Ship Models, Sextants

SPENCER BROWNING ANTIQUE OCTANT SEXTANT 1820

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This Fine Instrument Has Been Sold. Thank You!
 
 
   

FINE QUALITY ANTIQUE SPENCER~BROWNING~RUST OCTANT/SEXTANT Ca 1820 

PRESENTED is a fine early 19th C. mariner's sextant with ebony frame. ivory graduated arc and vernier, and bronze fittings. The arc measures from - 5 to plus 105 degrees. The ivory plate on a cross bar between the two limbs is enragaved "Spencer Browning & Co. London", Additionally, in the center of the ivory degree's scale between 50 and 55 degrees is inscribed in script "SBR" further identifying this instrument as that of Spencer, Browning & Rust, of London. This beautifully made instrument has a ribbed brass index arm measuring over 11 1/2 inches long. The horizon mirror is on an adjustable turntable and can be rotated by two knobs one of which locls the mirror's position. Note the early form thumb screw, ivory vernier scale, reading from right to left from 0 to 20 arc minutes, two hole peep sight with "flap", and three sun shades all of which date the instrument around the turn of the century, or Ca 1800-1820.

Some time after 1780, the addition of a tangent screw, as fitted to this instrument, allowed for fine adjustment and represents one of the two major changes in the basic operation of the octants and sextants for the next 150 years! The second was the fiting of telescopes. As was the practice with octant's of larger size, this sextant was not fitted with a handle which indicates it is one of the earliest of that type made by Spencer Browning making it a noteworthy instrument by this maker.

                        Maker's Name
                  Spencer Browning Rust Logo

                   Retailer's Label
                      Stair Step Keystone Case

CONDITION: The instrument, its ivory name and graduated arc, and its hardware is in remarkably good condition, with a nice patina of age is in exceptional quality overall. All three bronze legs are present. Missing is a small ivory scribe, and inlaid ivory plate, neither if which were of much use. Both mirrors have long ago degraded with the passing of almost 200 years. If desired, resilvering is inexpensive and available through most mirror shops.

THE CASE: The "stair step, or keystone" solid oak case is in good solid condition, with some age cracks and shrinking. There is a lock, but no key. This style case went out of use by the 1820's - 40's and is a further gauge of the sextant's age. A label on the inside reads Charles F. Helffrich, Instrument Maker, Sign of the Quadrant, No. 122 South Front St. Between Walnut & Dock, Philadelphia.

All in all, a highly desirable and worthwhile example from one of the better known English instrument makers.

DIMENSIONS:
 
Length of frame 11 1/4
Width of frame at arc   9 7/8"
Index miror 50 x 33 mm
Horizon mirror 24 x 15 mm
Weight    2 Lbs2 oz

OUR UNCONDITIONAL GUARANTEE: If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original condition and packaging. Returns must be insured for their full value. All that is required is a prior email authorization by us for the return. Unfortunately, no refund can be made for the cost of shipping, packaging and handling.

International buyers welcome, but inquire first. 
 We have satisfied customers in Australia, Austria, Belgium, Bermuda, Canada, Chile, Denmark, England, France, Germany, Holland, Ireland, Italy, Japan, Kuwait, Mexico, New Zealand, Norway, Nova Scotia, Saudi Arabia, Scotland, Singapore, Spain, Sweden, Thailand, USVI and the Eastern Caribbean.

SHIPPING & PACKING: The cost of shipping, packing, handling, and insurance to your destination, will be calculated after the auction and is an additional charge. You may email us before bidding to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

Buy this very special article of American maritime history Now!   What a great find for that special person who can appreciate only the finest and most unusual.

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