Vintage laboratory glassware...

I don't know what this would be used for, or what it is called

I've now learned that it was used for distilling, and the glass has been hand blown More info.... It's the top chamber of "Kipps Apparatus", I have the photo upside down Thanks Alan for your info

No crack or chips There are some marks that you can see in the photos I've washed the outside but there is some bits of dirt inside the glass ball

Pick up from Castor Bay, North Shore No posting, too fragile