Wed. J. Ahrend & Zn - Optical Square & - 万能測角儀/測量十字 - Brass - 1900-1910
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Industrial brass pantometer and optical square set by Wed. J. Ahrend & Zoon, Amsterdam, dating from circa 1900–1910, with original metal case and wooden transport box, weighing about 2 kg, dimensions 10 cm high, 19.5 cm wide and 10.5 cm deep.
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Description from the seller
Antique Wed. J. Ahrend & Zoon Surveying Set – Pantometer No. 7305 & Optical Square – Original Case – c. 1900–1910
An early 20th-century surveying set by Wed. J. Ahrend & Zoon (Amsterdam), comprising an original Pantometer No. 7305, a matching double right-angle prism (optical square), its original metal storage case, and the original fitted wooden transport box.
Dating to circa 1900–1910, this professional surveying outfit was used for land measurement, engineering and cadastral work. Complete examples are becoming increasingly difficult to find.
The set includes:
Ahrend Pantometer No. 7305 with engraved serial number
Precision 360° graduated scale
Original mounting stem with brass adjustment
Double right-angle prism (optical square)
Original metal prism container
Original fitted wooden transport case
Historical Context
Wed. J. Ahrend & Zoon was one of the Netherlands' leading suppliers of professional surveying and scientific instruments. Their precision equipment was widely used by engineers, surveyors and government services throughout the early 20th century.
Specifications
Maker: Wed. J. Ahrend & Zoon, Amsterdam
Date: approx. 1900–1910
Approx. dimensions case: h 10 × w 10.5 × d 19.5 cm
Approx. total weight: 2.0 kg
Condition
In excellent antique condition with attractive age-related patina and normal traces of professional use. The pantometer rotates smoothly, the engraved scale remains crisp and legible, the prism is intact, and the original wooden case is complete with functioning hinges and closures.
Please study the photographs carefully, as they form an integral part of the description.
A rare and desirable Dutch surveying instrument set for collectors of scientific, engineering and geodetic instruments.
Seller's Story
We are a passionate team of skilled collectors dedicated to sourcing truly unique and rare vintage pieces. On Catawiki, we showcase only our finest finds. Carefully curated, lovingly selected, and offered with the lowest possible shipping rates as a service to our buyers.
Every item is professionally packed the very next day and shipped via registered mail for a safe and reliable delivery.
If you have any questions, please feel free to contact us. We are always happy to help.
Antique Wed. J. Ahrend & Zoon Surveying Set – Pantometer No. 7305 & Optical Square – Original Case – c. 1900–1910
An early 20th-century surveying set by Wed. J. Ahrend & Zoon (Amsterdam), comprising an original Pantometer No. 7305, a matching double right-angle prism (optical square), its original metal storage case, and the original fitted wooden transport box.
Dating to circa 1900–1910, this professional surveying outfit was used for land measurement, engineering and cadastral work. Complete examples are becoming increasingly difficult to find.
The set includes:
Ahrend Pantometer No. 7305 with engraved serial number
Precision 360° graduated scale
Original mounting stem with brass adjustment
Double right-angle prism (optical square)
Original metal prism container
Original fitted wooden transport case
Historical Context
Wed. J. Ahrend & Zoon was one of the Netherlands' leading suppliers of professional surveying and scientific instruments. Their precision equipment was widely used by engineers, surveyors and government services throughout the early 20th century.
Specifications
Maker: Wed. J. Ahrend & Zoon, Amsterdam
Date: approx. 1900–1910
Approx. dimensions case: h 10 × w 10.5 × d 19.5 cm
Approx. total weight: 2.0 kg
Condition
In excellent antique condition with attractive age-related patina and normal traces of professional use. The pantometer rotates smoothly, the engraved scale remains crisp and legible, the prism is intact, and the original wooden case is complete with functioning hinges and closures.
Please study the photographs carefully, as they form an integral part of the description.
A rare and desirable Dutch surveying instrument set for collectors of scientific, engineering and geodetic instruments.
Seller's Story
We are a passionate team of skilled collectors dedicated to sourcing truly unique and rare vintage pieces. On Catawiki, we showcase only our finest finds. Carefully curated, lovingly selected, and offered with the lowest possible shipping rates as a service to our buyers.
Every item is professionally packed the very next day and shipped via registered mail for a safe and reliable delivery.
If you have any questions, please feel free to contact us. We are always happy to help.
Details
時代
1900-2000
製造元/ブランド
Wed. J. Ahrend & Zn - Optical Square &
原産国
Netherlands
素材
Brass
スタイル
Industrial
コンディション
Excellent condition: barely used with minimal signs of wear
高さ
10 cm
幅
19.5 cm
奥行き
10.5 cm
重量
2 kg
推定年代
1900-1910
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