Welcome to HJs Virtual Instrument museum
Welcome to my virtual (digital) museum. You will mainly find Wild Heerbrugg 'green' instruments and (surveying) sextants. In addition there are the 'tools of the trade' for a hydrographic surveyor including draughting instruments. The collection is continuously expanded, so do not hesitate to revisit. If you have any remarks or additions to the texts, do not hesitate to inform me. I am always looking for more information about my instruments.
NOTE: I generally do not sell instruments, this is no shop, it is a virtual museum. Also see: about us.
The station pointer
Survey sextants in the Netherlands
The survey sextant outside the Netherlands
History of the sextant
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