It’s very interesting. I have so many questions.. However the positioning of the mercury and the two little dots consistent with the engravings Anthony two little pins or nails in the tubes can be moved up and down the market, the high and low spots with a little magnet I have done this. It’s interesting that there’s both mercury and alcohol in the tubes is generally just a rather peculiar and interesting little item. 13 inches long made of copper and the backing is white glass i think. Perfect for the News weather girl in your life!
