Thank-you for that info. it's sometimes not so easy to be sure when looking at photos and never having seen the thing "in the flesh". I can see it's different but I've never seen an actual piece of Libelle to compare the two.
Can you confirm that my piece with the flattened rim is another variant of the vase please? I couldn't find it in the catalogues, or anywhere else that I've looked. I'm not even sure if it's meant to be a vase or not although the base diameter is the same. For some reason the inside "floor" is distinctly domed rather than flat as in the vase.
To me it doesn't look like it would work very well as either a flower vase or a bowl.