Wild Heerbrugg GDR3
Wild Heerbrugg GDR3 prism plus tribrach stand
Early prism for use with the DI10 over short distances. For longer distances the GDR11 was available. The downaide of this prism is that it does not have any target options other than a set of visors at the top. THis would have made it hard to aim to, having ot use the pole itself as reference. The GDR31 which is from a later date has a similar prism but does have target plates.
gdr3
Data sheet
- Type of use
- Survey
- Material
- Glass
Steel - Size instrument (l x w x h) in m
- 0.08 x 0.11 x 0.09 / 0.24
- weight instrument in kg
- 0.7 / 1.1
- Size case (l x w x h) in m
- 0.12 x 0.15 x 0.16
- weight case & in kg
- 0.2
- country obtained from
- United States
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Wild Heerbrugg GDR3 prism plus tribrach stand