Theodolite - 1850-1900 - France
05
days
04
hours
56
minutes
26
seconds
Current bid
€ 21
No reserve price
Expert
Selected by Paula Martin-Calero Toro
Holds a degree in art history; over six years cataloguing and appraising antiques.
Estimate € 140 - € 170
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 Bidder 0390 | €21 | |
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 Bidder 2742 | €20 | |
| Bidder 0390 | €15 | |
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A brass optical and topographic instrument, a surveyor’s leveling telescope mounted on a screw base with an integrated magnetic compass, dating to the late 19th century and featuring manual machining, adjustable objective and eyepiece, and a circular base with compass and fine leveling screws.
AI-assisted summary
Description from the seller
An optical and surveying instrument, more precisely a leveling telescope / surveyor's sighting telescope, mounted on a base with adjustment screws and an integrated compass.
This is a professional scientific instrument used for leveling, surveying, public works, and mapping.
Period: 1890
Entirely made of solid brass, homogeneous natural patina, absence of Bakelite or modern alloys, large knurled screws and manual machining, functional style with no superfluous decoration
Presence of a magnetic needle compass, typical of the late 19th century. We are clearly before the industrial standardization of the advanced 20th century.
Brass optical tube, adjustable objective and eyepiece, sliding focus system
Internal sighting mark (probable cross-thread)
Circular plate with integrated compass, graduations visible under glass, three leveling screws (fine adjustment), base designed for tripod (absent here)
The assembly is typical of a precision instrument intended for field use, rugged and reliable.
Seller's Story
I am a seller of a wide range of antiques and collectibles dating from different eras, my items are certified by auctioneers to ensure the reliability of my items.
Translated by Google TranslateAn optical and surveying instrument, more precisely a leveling telescope / surveyor's sighting telescope, mounted on a base with adjustment screws and an integrated compass.
This is a professional scientific instrument used for leveling, surveying, public works, and mapping.
Period: 1890
Entirely made of solid brass, homogeneous natural patina, absence of Bakelite or modern alloys, large knurled screws and manual machining, functional style with no superfluous decoration
Presence of a magnetic needle compass, typical of the late 19th century. We are clearly before the industrial standardization of the advanced 20th century.
Brass optical tube, adjustable objective and eyepiece, sliding focus system
Internal sighting mark (probable cross-thread)
Circular plate with integrated compass, graduations visible under glass, three leveling screws (fine adjustment), base designed for tripod (absent here)
The assembly is typical of a precision instrument intended for field use, rugged and reliable.
Seller's Story
I am a seller of a wide range of antiques and collectibles dating from different eras, my items are certified by auctioneers to ensure the reliability of my items.
Translated by Google TranslateDetails
Era
1400-1900
Material
Brass
Country of origin
France
Physical condition
Good
Functional condition
Not tested
Height
20 cm
Width
49 cm
Depth
14 cm
Estimated period
1850-1900
Title additional information
topography instrument
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