Cavers Antiques has dated this piece to the 18th Century.
18th century maybe earlier I'm not sure.
Extremely rare and unusual piece.
The stone is known as jade stone or heavyweight soapstone.
Museum quality item.
Weight about 150 kilos.
Fantastic decorators item. Or for period collection.
Anything you need to know please ask.
It's not for the faint hearted.
Cavers Antiques has dated this piece to the 18th Century.
You can view the stock and full dealer information on the Cavers Antiques Profile Page