"Thunder Bottle - Rooster Souffle Water Barometer 17th"
extremely rare model of water barometer also called a "thunder bottle" in blown and pinched glass, there is a pretty rooster under the suspension ring, to note a single pinching missing at the base of the trunk otherwise very good condition, presence of limestone inside, a similar model once existed at the Flanders Museum in Cassel (unfortunately more visible because in the reserves) height: 28 cm, width: 10 cm approximately 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato