Identification please possibly Murano

Does anyone recognise the maker of this glass bowl. Many thanks

Think it will be hard to pin this down to a particular maker. There seems to be a lot of these large, heavy hot worked dishes, with lobes and folded rims, around. From the photo it looks to have a Murano look about it, but also Czech is a possibility, and perhaps even Japan. Sorry that wasn't much help!

Thank you.