Astronomical instrument - Wood, Copper, Leather, Metal
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€ 20
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Selected by Dési van Rhee
Over 20 years' experience in antiques with a background in art history.
Estimate € 550 - € 630
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Antique marine instrument in a wooden case with copper, leather and metal components, dating to 1850–1900, known as the LUGEOL micrometer, with 17 cm depth, 36 cm height and 12 cm width, made in France, in good condition with age-related wear.
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Description from the seller
A rare marine instrument in its case, more commonly known as the LUGEOL micrometer (1799-1866), its maker, or marine micrometer including its wooden case with its hooks and a replacement telescope, the micrometer and a small bottle of oil, the auxiliary lens is fixed on the instrument.
The heliometer is a telescope used to measure the apparent diameter of celestial bodies, the Sun, Moon and planets, or the small apparent distances between them. This allowed the creation of charts used for navigation and astronomy.
A very rare feature, it is in perfect condition with its graduated table in degrees on the telescope. It has an objective formed of two symmetrical half-lenses sliding against each other, allowing the adjustment of the two relative positions for calculation.
A rare and complex instrument, rarer than a Borda hydrographic circle. It was in 1748 that Pierre BOURGET (1698-1758), a mathematician, presented to the Royal Academy of Sciences a 24-page memoir on this instrument of his invention.
For a discerning collector. The same case is at the Musée de la Marine in Paris.
A rare marine instrument in its case, more commonly known as the LUGEOL micrometer (1799-1866), its maker, or marine micrometer including its wooden case with its hooks and a replacement telescope, the micrometer and a small bottle of oil, the auxiliary lens is fixed on the instrument.
The heliometer is a telescope used to measure the apparent diameter of celestial bodies, the Sun, Moon and planets, or the small apparent distances between them. This allowed the creation of charts used for navigation and astronomy.
A very rare feature, it is in perfect condition with its graduated table in degrees on the telescope. It has an objective formed of two symmetrical half-lenses sliding against each other, allowing the adjustment of the two relative positions for calculation.
A rare and complex instrument, rarer than a Borda hydrographic circle. It was in 1748 that Pierre BOURGET (1698-1758), a mathematician, presented to the Royal Academy of Sciences a 24-page memoir on this instrument of his invention.
For a discerning collector. The same case is at the Musée de la Marine in Paris.
Details
Era
1400-1900
Country of Origin
France
Material
Copper, Leather, Metal, Wood
Style
Antique
Condition
Good condition - used with small signs of aging & blemishes
Height
36 cm
Width
12 cm
Depth
17 cm
Estimated period
1850-1900
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