Here is a nice older barometer made by mova products co inc i’m l. It has the name wm christensen co. I don’t know the working condition of this but it is a great collectible.
It gives the rising and falling indications. It has altitude correction on the bottom.
The item “Antique MOVA Desktop Barometer Wm Christensen Co York Pa 1920’s 30’s” is in sale since Thursday, June 26, 2014. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “rrisner” and is located in Lancaster, Pennsylvania. This item can only be shipped to United States.
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- https://barometersonline biz/2014/06/27/antique-mova-desktop-barometer-wm-christensen-co-york-pa-1920s-30s/
