Many thanks for your help. Although I am surprised and a little saddened by the result!! This was bought in Melbourne, from auction, and happily I paid very little, comparatively. It was just listed as art glass, with no claims to loftier heights.
I went to the Bambis site and found that they are an Aussie importing company, located not too far from where I live. Their other items are sold through the big department stores here. This piece most likely came from one of those as well.
Oh well, I am very glad that I asked, as I would hate to misrepresent this as something it isn't. We see a huge amount of Chinese glass here but it is usually so blindingly obvious - especially as I actually know some of the folk who bring it over. This piece is very different though - never seen a piece marked with anything before. Probably made elsewhere, but still in a low cost production place.
Many thanks to you all