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| Brand | Wild Heerbrugg | Wild Heerbrugg | Wild Heerbrugg | Wild Heerbrugg |
| Features | ||||
| Year | 1952 | 1978 | -- | -- |
| Serialnumber | 30185 | 217814 | 1905 | 365224 |
| Type of use | Survey | Survey | Survey | Survey |
| Material | Brass | Brass | -- | -- |
| fine reading | direct (analog) | direct (analog) | direct (digital) | -- |
| image direction | inverted | upright | upright | upright |
| magnification | 25 | 24 | -- | 30 |
| field of view @1000m in m | 28 | 22 | -- | -- |
| weight instrument in kg | 7.2 | 7.1 | 10.1 | -- |
| Size case (l x w x h) in m | 0.16 x 0.24 x 0.44 | 0.17 x 0.37 | 0.30 x 0.36 x 0.45 | 0.26 x 0.26 x 0.48 |
| weight case & in kg | 7.0 | 2.4 | 4.6 | -- |
| country obtained from | Germany | Belgium | United Kingdom | Germany |
| measuring range | -- | -- | 750 m | 2000 - 4000 m |
| accuracy | -- | -- | Hz: 3" | V: 6" | 5 mm | 1.5" | 3 mm + 2 ppm |
| Size instrument (l x w x h) in m | -- | -- | 0.24 x 0.28 x 0.37 | 0.22 x 0.21 x 0.32 / 0.37 |
| graduation | -- | -- | -- | gon / grad, deg, mil (6400), m, yard |
