Vidi Aneroid (without liquid) barometers by Maxant (Paris) and unknown maker

Example of the Vidi movement most often seen and more common then the Bourdon Type, which seem to be rare now

[@thedancingalien7766]

What do You Think Of
Electronic barometers computer Type😮😮😮

[@kishorekumar-dj7yo]

how it work
i have it is not working how it works

[@mangalprasad6304]

i have this but it is not work