Never seen anything like it before, don't know what it is, think you may be right with the lamp base theory. But I love it and I think I would have thought I had to bring it home, too!

Well done K :thup:
I'm intrigued to think about how the opalescence would have been applied! Presumably in the mould it was blown into? The little curly feet look Victorian in style - in fact the whole thing looks 'early', if you know what I mean! A puzzler! :huh: