0202
   EXPLORATION THEODOLITE  
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  Surveying Instrument Collection 

Maker

Wild, Heerbrugg (Switzerland)

Model

T12

Serial Number

37595

Dimensions

Height 185 mm

Image

Wild T12 Exploration Theodolite

Description

This Exploration Theodolite is an instrument designed for short-range vertical staff tacheometry and is typically used in exploration and expedition surveys where no great accuracy is required. It is a small and compact instrument with a telescope diameter of 10 mm and an overall height of 185 mm. Horizontal circle readings can be taken to 1 minute and vertical circles can be read to 2 minutes. It is a fairly remarkable instrument, not only for its very light weight and small size, but also for the telescope being fixed in a vertical position with sights reflected to the telescope objective by a pivoted reflecting prism, giving the angle of inclination of the line of sight to a limit of +36 degrees.

History & comments

There is no historical information available.

Conservation

In a case

Condition

Good

Remarks

  • This instrument is one of two in the collection (see also 0206)
  • Catalogued by T. Ko
  • Updated by F. Pall & J. M. Rüeger
  • Thanks go to J. Dedual for providing the correct date of manufacture.

Dates

Manufactured in 1953. Catalogued in 1997 & 2005

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