Quality

Almost unbelievable to have found this treasure in Bern, going back to my great-grandfather. In 1919 he founded the company Haenni, which had success in producing manometers, measuring instruments and fittings. He died too early, the company changed owners (long before my time) and it doesn't exist any longer in its former structures. From time to time it is still possible to find some instruments.

This one here is quite special. It is in public, placed in a glassbox and combining 4 measuring instruments. Temperature, air pressure in mbar, the third I don't remember and the fourth the water temperature in the river Aare, just flowing below this place.