I've seen a couple of vases bearing this label from different sellers at UK fairs recently - the quality of them seemed a bit iffy, and the glass very lightweight for the size and thickness of the casing. Were it not for the fact that foil labels are almost impossible to remove and reapply, and that both vases had some age-wear to them, I'd have sworn that it was modern Chinese masquerading as 50s Murano.
They were definitely towards the cheaper tourist end of the scale.