ID: 114
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Very fine brass astronomical equinoctial ring with two brass circles.
BuyNow for $8.000
- Maker :
- JEAN-BAPTISTE NICOLAS DELURE À PARIS
- Place :
- Paris
- Date :
- ca. 1690
- Color :
- Uncoloured
- Height mm.:
- 160
- Width mm.:
- 160
- Condition :
- Diameter of the equinoctial ring is 10cm.
- Bibliography :
- A Butterfield ring dial of similar design but smaller, is illustrated in Sundial at Greenwich, Hester Highton, OUP 2001, page 200, catalogue no. 186.
- Seller's ref. :
- 48701
This item is offered by Paulus_Swaen_Old_Maps
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$8.000
Description
Very fine brass astronomical equinoctial ring with two brass circles with engraved foliage decoration, signed "Jean-Baptiste-Nicolas Delure A Paris", on the hanger ring.
The meridian ring is engraved with a latitude scale 90-0-90 degrees, reverse with a scale for determining solar altitude and zennith distance, an equinoctial ring with obverse engraved with hour scale in Roman numerals, the central bridge with pin-hole sliding over calendar and zodiac scales, 100 mm diam.
Jean-Baptiste-Nicolas Delure (1695-1766) was a renowned French instrument, globe maker and horologist was given the title "Ingénieur du Roi, juré en 1721-1723" (under the license of the king" (Louis the XIV) in 1721-1723). He was a Master and Juror of the Corporation des Fondeurs and appointed Ingénieur du Roi to Louis XIV. He had two workshops, both on Il de la Cite, Paris.
Jean-Baptiste-Nicolas Delure (1695-1766) was a renowned French instrument, globe maker and horologist was given the title "Ingénieur du Roi, juré en 1721-1723" (under the license of the king" (Louis the XIV) in 1721-1723). He was a Master and Juror of the Corporation des Fondeurs and appointed Ingénieur du Roi to Louis XIV. He had two workshops, both on Il de la Cite, Paris.
He was father-in-law to the fifth son of the eminent Parisian instrument maker Nicolas Bion.
Jean-Baptiste Nicolas Bion carried on both their businesses until around 1770.
Jean-Baptiste Nicolas Bion carried on both their businesses until around 1770.
The meridian ring is engraved with a latitude scale 90-0-90 degrees, the reverse with a scale for determining solar altitude and zenith distance, the quadrennials ring with obverse engraved with an hour scale in Roman numerals, the central bridge with pin-hole sliding over the calendar and zodiac scales, 100 mm diam.
This is a relatively large example of the classic pendant ring dial, useable anywhere on earth without a compass. Only the date and one's latitude are needed to determine the apparent solar time and even the North. the latitude can be determined using the quadrennial degree scale at the backside to measure the solar meridian altitude.
As the other stars appear to rotate, their position at any moment indicates the time. Sometimes called “horologium nocturnum” or “Nocturlabe” are related to the astrolabe and the sundials.
The mention of a dedicated instrument for its measurement was not found before the Middle Ages. The earlier image presenting the use of a nocturnal is in a manuscript dating from the 12th century.
Raymond Lull repeatedly described the use os a “Sphera horarum noctis”. With Martin Cortés de Albacar´s book “Arte de Navegar” published in 1551 the name and the instrument gained a larger popularity.
Timekeeping was very important to navigators at sea. Precise time was needed to use tide tables to enter harbors safely and also to regulate work shifts aboard.. Thus, the navigators could tell the time at night if the weather was clear.
The problem was that when the sky was obscured in foul weather, they had no way of knowing the exact time except by running the sand-glasses. By the middle of the 18th century, more accurate clocks became available, known as chronometers and the nocturnals fell out of use. Nocturnals are really simple analog computers. The nocturnal is simpler to use than other instruments requiring mathematical tables and trigonometry.
Nieuwe gelyk Graadige Paskaart van de Kust van Guiana in West-Indien.
Detailed chart of Guiana in South America. Two scales are given in both maps: Dutch, French and English nautical miles.The inset chart provide detailed view of the Camopi and Maroni or Marowijne Rivers that forms the border between French Guiana and Suriname. The charts are prepared by Johannes Loots and H.Mooy.
$650
Maker : VAN KEULEN, G.
Place : Amsterdam
Date : 1684 - 1704
Gelriae, Cliviae, Finitimorumque Locorum Verissima..
East to the top. Fine map of Geldria and Limburg, prepared by Christian s'Grooten. Very fine title cartouche lower right with painter's utensils around the cartouche.Dare to go in Black. All early maps were printed in black and white, and many were kept that way for a long time. A black and white map in an early and strong impression is a rarity nowadays, being so many examples recently colored up!
$250
Maker : ORTELIUS, A.
Place : Antwerp
Date : 1598
A new mape of Ye XVII Provinces of Low Germanie.
Showing all 17 Provinces of the Netherlands before the split between Spain and the Protestant Provinces under the House of Orange.The map was first published. At the same time, the war of independence was still being fought against Philip II. With columns of figures on either side and surmounted by eight city prospects. A famous and most decorative item.A fourth state published by Thomas Basset and Richard Chiswell. The date has been removed and Speed's name has been added to the title cartouche...
$2.300
Maker : SPEED, J.
Place : London, 1676
Date : 1626
Résidence of WM H.Drew Southeast Putnam Co.N.Y / Lake Farm Résidence of John V.Storm East Fiskill Dutches Co.N.Y.
Two heliographic prints on one sheet : " Résidence of WM H.Drew Southeast Putnam Co.N.Y / Lake Farm Résidence of John V.Storm East Fiskill Dutches Co.N.Y." after design by R.K.Sneden.From Beer's famous county atlas "Atlas of New York and vicinity", "a documentary record of nineteenth century life and delightful specimens of American folk art". F. W. Beers, along with other members of his family, were among the leading county atlas publishers in period immediately following the Civil War. Their...
$90
Maker : DE BEERS, F.W.
Place : New York,1867
Date : 1867
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Item Location
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- 75013, Ile-de-France, France
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