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.
Gezicht van het Admiraliteits-Magazyn en Scheeps Timmerwerf.
Formerly the V.O.C. warehouse and arsenal for the Admiralty of Amsterdam, now-a-days the Scheepvaartmuseum (Maritime Museum). Taken from the "Atlas of Amsterdam".
$300
Maker : FOUQUET jr., P.
Place : Amsterdam
Date : 1780
-500x500.jpg)
Amstelodamum, Celebre Emporium Forma Plana.
Second state of this rare and decorative plan of Amsterdam with Visscher's imprint. With a panoramic view seen from the IJ and further insets of Council House, The Exchange, House of the Dutch East India Company and House of the West India Company. This state figures the fourth extension with the projected growth of the city added to the left half of the sheet; on the west side, the "Realeneiland" has been extended, above the image of the west India House, the imprint of Visscher has been added,...
$5.000
Maker : VISSCHER, Claes Jansz.
Place : Amsterdam
Date : c. 1636
Brabantiae Descriptio.
In an inset Mechelen and surroundings. Decorative scale and title cartouche with dedicational initials, which may refer to Laurentius Michaelis, who may be connected with the Mechelen inset map.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!
$350
Maker : ORTELIUS, A.
Place : Antwerp, 1598
Date : 1598
Les Provinces Unies des Pays Bas, suivant les nouvelles observations. . .
With decorative title cartouche upper left corner.This example is unusual in having the additional separately engraved decorative framework border around the map, the resultant visual effect being particularly striking. The frame border was prepared with a blank center so that the map could be over-printed on that area.These separately engraved border frames appear much more uncommon than the standard edition without border frames. From Le Nouveau Theatre du Monde, ou la Geographie Royale.
$250
Maker : AA, P. van der
Place : Amsterdam
Date : 1728
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- 75013, Ile-de-France, France
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