技術器具 - United Kingdom - 1900-1910 - アンティーク真鍮の測量士の
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Antique Brass Surveyor's Level, an engineer's optical level in brass dating from circa 1900–1910, with dimensions 35 cm wide by 26 cm high by 10 cm deep; in excellent condition.
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Description from the seller
Antique Brass Surveyor's Level / Engineer's Optical Level
Europe, circa 1890–1925
An authentic antique brass surveyor's level (engineer's optical level) dating from the late 19th to the early 20th century.
This precision optical surveying instrument features a solid brass telescope, integrated spirit level, fine adjustment mechanisms and a heavy brass display stand. The instrument is complete and fully functional: the optics are clear, focusing operates correctly, the adjustment mechanisms work smoothly, and the spirit level is intact.
No maker's mark has been found despite careful inspection.
Based on the construction details, machining quality and overall design, the instrument most closely resembles the products of:
E. R. Watts & Son, London (United Kingdom) — approximately 55% probability
J. H. Steward Ltd., London (United Kingdom) — approximately 30% probability
The remaining probability includes other European manufacturers such as Stanley London, Otto Fennel, Breithaupt and Carl Bamberg, whose early surveying instruments share similar construction features.
Dating is estimated at circa 1890–1925.
Condition
Very good antique condition with an attractive original patina.
Fully functional instrument
Original brass body
Original optical elements
Spirit level present
Smooth focusing mechanism
Working adjustment screws
Complete and ready for display or collection
Normal signs of age consistent with more than 100 years of careful use
The photographs form an integral part of the description.
A beautiful and highly decorative precision scientific instrument representing the golden age of civil engineering and land surveying. Suitable for collectors of antique scientific instruments, optics, engineering history and geodesy.
Estimated date: circa 1890–1925
Maker: Unknown (see attribution above)
Origin: Probably United Kingdom or Continental Europe
Antique Brass Surveyor's Level / Engineer's Optical Level
Europe, circa 1890–1925
An authentic antique brass surveyor's level (engineer's optical level) dating from the late 19th to the early 20th century.
This precision optical surveying instrument features a solid brass telescope, integrated spirit level, fine adjustment mechanisms and a heavy brass display stand. The instrument is complete and fully functional: the optics are clear, focusing operates correctly, the adjustment mechanisms work smoothly, and the spirit level is intact.
No maker's mark has been found despite careful inspection.
Based on the construction details, machining quality and overall design, the instrument most closely resembles the products of:
E. R. Watts & Son, London (United Kingdom) — approximately 55% probability
J. H. Steward Ltd., London (United Kingdom) — approximately 30% probability
The remaining probability includes other European manufacturers such as Stanley London, Otto Fennel, Breithaupt and Carl Bamberg, whose early surveying instruments share similar construction features.
Dating is estimated at circa 1890–1925.
Condition
Very good antique condition with an attractive original patina.
Fully functional instrument
Original brass body
Original optical elements
Spirit level present
Smooth focusing mechanism
Working adjustment screws
Complete and ready for display or collection
Normal signs of age consistent with more than 100 years of careful use
The photographs form an integral part of the description.
A beautiful and highly decorative precision scientific instrument representing the golden age of civil engineering and land surveying. Suitable for collectors of antique scientific instruments, optics, engineering history and geodesy.
Estimated date: circa 1890–1925
Maker: Unknown (see attribution above)
Origin: Probably United Kingdom or Continental Europe
Details
時代
1900-2000
アイテム数
1
原産国
United Kingdom
素材
Brass
コンディション
Excellent condition: barely used with minimal signs of wear
高さ
26 cm
幅
35 cm
奥行き
10 cm
推定年代
1900-1910
タイトル補足情報
Antique Brass Surveyor's
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