Vintage Naudet Barograph For Sale

Vintage Naudetbarograph made in France. This listing has been update. First, we thought this was a seismograph. We now believe it is a barograph. Please inspect photos and make the determination when deciding on a purchase. Selling for collectors or display purposes because this device has not been tested. We do not know how to operated it, so we are not sure if it works. It appears to be in overall excellent condition. Please examine photos to decide for yourself. Selling it as-is. Free shipping within the US (USPS Priority with full insurance).