Research
på aktuelt udbud af en original Davis-kvadrant (Backstaff)
For flotte kopier af stave: http://www.dehilster.info/
Evt. kan instrumenter checkes i Websters instrumentmagerindeks: www.adlerplanetarium.org/history/websters/
Se http://www.uzes.net/marketwatch/tcsmw/catchup03/kingquadrant.htm
Amerikansk fabrikeret Davis-kvadrant fra ca. 1760. Prisen blev $5750 (feb. 2003)
På en stor auktion (afholdt af James D. Julia, Inc) på Samoset Resort i Rockport, Maine (USA) kom der 22. august 2002 en Davis-kvadrant under hammeren.
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Lot
197: EARLY DAVIS STYLE BACKSTAFF "MADE FOR MR. JOSEPH LIGHT". DIMENSIONS:
20 1/4" CONDITION:
Missing slide to each scale, point at which top scale meets staff has
broken and parts missing, in need of repair. Vurdering: $3000-5000 |
På Hyland Granby's hjemmeside (http://www.hylandgranby.com/hygr.php?pg=c1) er en Davis-kvadrant udbudt.
The Seth Halit
Backstaff
Ebony and boxwood backstaff, signed on an inlaid bone plate: "Seth Halit 1794", American or English. The larger arc is graduated 0 to 25 degrees and the smaller arc is divided 0 to 60 degrees. Both arcs are made of boxwood and have typically carved fancy ends. The limbs are made of ebony and are mortised and tenoned and have metal pins. Each side of the limb has a pair of scribe lines. Backstaffs are considered by many as the most beautiful of all navigational instrument and are extremely rare.
DIMENSIONS: Length 25 1/2 inches; Height 14 inches.
CONDITION: The instrument has a beautiful untouched surface. There is wood loss to the top of the large arc and a few minor nicks to the limbs. The horizon vane is original, and the sighting and shadow vanes are replaced.
Pris: Ikke prissat
Hyland
Grandby Antiques
P.O.Box 457
Hyannis Port MA02647 USA
Phone: (508) 711-3070
Mail:alan@hylandgranby.com
Firmaet Skinner Galleries afholdt (sandsynligvis i 2000) en "Auction of science & technology"
I pressemeddelelsen fra firmaet efter auktionen står der: "Leading the selection of marine instruments was an American Davis-pattern backstaff, signed "Made By Benjamin King in Newport Rh° Island 1768" that reached $6325".
"As this is the first time such an auction has been held in America, I'm very heartened with its success and look forward to our next sale," commented department director George Glastris. Consignments are currently being accepted for the next auction of Science and Technology. For information, telephone George Glastris at (978) 779-6241, or fax (978) 779-5144.
Se www.antiquecast.com/press/skinners/skinnerspress3_6_00.html
På Tesseracts hjemmeside (www.etesseract.com/Navigation/Navigation.html#Handsome) er stadig en Davis-kvadrant til salg - men grundet dollarkursen nu meget billigere!
Signed on the inlaid boxwood plaque "JAMES RICH 1771." Measuring 22-11/16" overall, this handsome example of a Davis quadrant is made of rosewood, apparently, with arcs of boxwood, and has fine patina. The wood stock is a full 5/8" thick, the joints mortised then pinned through the tenons. The main arc is hand divided every five arcminutes from 0° to 25° (and back again from 65° to 90°), with transversal scales reading to one arcminute(!).
The short arc is divided every degree from 0° to 65°.The wood is punched with finely shaped 18th century numerals, and is decorated with incised lines throughout. The instrument has a lovely carved "handle," and various punched Tudor rose, fleur-de-lys, and star patterns. The maker, James Rich, is known to Clifton, her entry being based on this very backstaff. A significant example.
DIMENSIONS: 22-11/16" overall.
CONDITION: Very fine, noting a few old stains, and some relatively minor age cracks, one with an old repair.
Salgspris: $5950
Kontakt:
Box 151
Hastings-on-Hudson
New York 10706
phone: 914-478-2594
fax: 914-478-5473
mail: coffeen@aol.com