522 South Pineapple Avenue
Sarasota, FL 34236
United States
Sarasota Estate Auction specializes in a wide variety of furniture, antiques, fine art, lighting, sculptures, and collectibles. Andrew Ford, owner and operator of the company, has a passion for finding the best pieces of art and antiques and sharing those finds with the Gulf Coast of Florida.
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Jan 19, 2025
Original 19th Century Sailing Ship Captain's Octant As Lamp. Ebony and brass with original fitted case and key, mounted as a lamp.
Size: 13 X 15 X 28 in.
#8638 .
The octant, also called a reflecting quadrant, is a reflecting instrument used in navigation. The name derives from the Latin “octans” meaning eighth part of a circle, which constitutes the instrument’s arc. “Reflecting quadrant” derives from the instrument using mirrors to reflect the path of light to the observer and, in doing so, doubles the angle measured. This allows the instrument to use a one-eighth of a turn to measure a quarter-turn or quadrant. Isaac Newton’s reflecting quadrant concept was invented around 1699, and two men independently developed the modern octant roughly around 1730: John Hadley, an English mathematician, and Thomas Godfrey, a glazier from Philadelphia. Both of these men also developed the more commonly used sextant a year later, which was wider and more accurate, although both instruments were very sensitive and the mirrors could easily be knocked out of adjustment, meaning that they had to be checked frequently for errors and adjusted accordingly. Nevertheless, by 1780 their remarkable accuracy and the ease of transporting and using them meant that they had almost completely displaced all previous navigational instruments, and they remain the most common analog navigational tools in existence to this day.
SHIPPING INFORMATION·
Sarasota Estate Auction IS NOT RESPONSIBLE FOR SHIPPING! BUYER MUST ARRANGE SHIPPING. All shipping will be handled by the winning bidder. Sarasota Estate Auction recommends obtaining shipping quotes before bidding on any items in our auctions. To obtain a quote, please email info@premiershipment.com. Be sure to include the lot you are interested in and address you would like the quote for. Refunds are not offered under any circumstances base on shipping issues, this is up to the buyer to arrange this beforehand.
BIDDER MUST ARRANGE THEIR OWN SHIPPING. Although SEA will NOT arrange shipping for you, we do recommend our preferred shipper Premier Shipping & Crating at info@premiershipment.com You MUST email them, please DO NOT CALLl. If you'd like to compare shipping quotes or need more options, feel free to contact any local Sarasota shippers. You can email any one of the shippers below as well. Be sure to include the lot(s) you won and address you would like it shipped to. Brennan with The UPS Store #0089 - 941-413-5998 - Store0089@theupsstore.com AK with The UPS Store #2689 - 941-954-4575 - Store2689@theupsstore.com Steve with The UPS Store #4074 - 941-358-7022 - Store4074@theupsstore.com Everett with PakMail - 941-751-2070 - paktara266@gmail.com
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