de Koningh drum survey sextant
New style de Koningh survey drum sextant.
Product details: de Koningh drum survey sextant | de Koningh | Quintant | Survey | Material: Aluminium
This is a more modern pattern than earlier models with rounded corners. Apart from that it is technically not very different from the previous model. The telescope is similar as that on the oldest (vernier) model showing that telescopes were not coupled to a design or year but rather to the users preference.
de Koning drum new
Data sheet
- Serialnumber
- 6407
- Type of use
- Survey
- Material
- Aluminium
- graduation
- gon / grad
- measuring range
- 145
- Radius limb in mm
- 165
- accuracy
- 10 mgon
- fine reading
- drum micrometer
- image direction
- upright
- Size instrument (l x w x h) in m
- 0.24 x 0.31 x 0.15
- weight instrument in kg
- 1.7
- Size case (l x w x h) in m
- 0.31 x 0.32 x 0.16
- weight case & in kg
- 2.9
- country obtained from
- Netherlands
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New style de Koningh survey drum sextant.
Product details: de Koningh drum survey sextant | de Koningh | Quintant | Survey | Material: Aluminium