theodolite - N2 - 1951 - Switzerland - Wild Heerbrugg

02
days
21
hours
45
minutes
58
seconds
Current bid
€ 25
No reserve price
IT
€25
IT
€22
IT
€19

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The N2 theodolite from 1951, of iron construction and originating from Switzerland, measures 19 cm high, 23 cm wide and 13 cm deep, in good physical condition and tested and working.

AI-assisted summary

Description from the seller

The N2 from 1951 was for many years the backbone of the (geodetic) surveyor. With its reversible spirit level / telescope it made compensation of measurement errors possible. The instrument is relatively heavy and very sturdy.

Accuracy
Compared to the Wild NKII from 1926 there is little change. The telescope has grown to 193 millimeters to allow a small sunshade. The magnification is specified as "24 or 28 times". The image is still inverted and has two stadia hairs with a magnification constant of 100 along the vertical cross.
The coincidence-f bottle has an accuracy of 30" per 2 millimeter run, which is less than the 20" of the Wild NKII from 1926. The leveling of the line of sight should be possible with an accuracy of about 0.5". 1 The leveling of a double kilometer should be possible with an accuracy of 2.0 millimeters.

Based on appearance this N2 has had a fairly long working life. It came with the original case. on the case it states "Van Hopplynus" this was a very renowned optician and importer of precision instruments based in Koningsstraat in Brussels.

Heavy signs of use but the lens is intact and everything still works.

The photos are part of the description.

The N2 from 1951 was for many years the backbone of the (geodetic) surveyor. With its reversible spirit level / telescope it made compensation of measurement errors possible. The instrument is relatively heavy and very sturdy.

Accuracy
Compared to the Wild NKII from 1926 there is little change. The telescope has grown to 193 millimeters to allow a small sunshade. The magnification is specified as "24 or 28 times". The image is still inverted and has two stadia hairs with a magnification constant of 100 along the vertical cross.
The coincidence-f bottle has an accuracy of 30" per 2 millimeter run, which is less than the 20" of the Wild NKII from 1926. The leveling of the line of sight should be possible with an accuracy of about 0.5". 1 The leveling of a double kilometer should be possible with an accuracy of 2.0 millimeters.

Based on appearance this N2 has had a fairly long working life. It came with the original case. on the case it states "Van Hopplynus" this was a very renowned optician and importer of precision instruments based in Koningsstraat in Brussels.

Heavy signs of use but the lens is intact and everything still works.

The photos are part of the description.

Details

Era
1900-2000
Number of objects
1
Manufacturer/brand
Wild Heerbrugg
Model/type number
N2
Material
Iron
Country of origin
Switzerland
Physical condition
Good
Functional condition
Tested and working
Height
19 cm
Width
23 cm
Type
theodolite
Depth
13 cm
Estimated period
1951
BelgiumVerified
374
Objects sold
100%
pro

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