"Curious Glass Funnel..."
I am waiting for your insight, because no matter how much I search, I cannot find any illustration on the web concerning the details of the life of this object. A blown glass funnel certainly from the 19th century (or even before??) Who has seen perfume essences or wine flowing down its walls or who knows what other precious liquids. Obviously precious so that a lip up there doesn't lose a drop... Then why this tip above, why this important glasswork, why this ring on its collar??? So let's explore an alchemist's or wizard's still??? 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato