Barigo Barometer - Brass, metal, and plastic - Barigo column barometer

Beautiful Barigo glass-domed barometer, Barigo is a renowned German manufacturer of precision barometers and other measuring instruments.
Not only decorative but also somewhat educational.
How exactly does an aneroid barometer work? That is visible from all sides with this glass-domed barometer—see the photos......
The barometer works perfectly and is in very nice, almost new condition.
The entire mechanism is fully visible beneath the removable dome.
Equipped with a double vacuum box for better accuracy....
The barometer can be adjusted by a small screw on the bottom, if necessary, to the current atmospheric pressure.
The rotatable dome is provided with two markings to, if desired, mark the momentary atmospheric pressure.
See the attached photos for more details.....