I don't know anything about Italian labels, but if I see a clear fleur-de-lis (the French national flower) and AV, my first thought would be France, AV for instance for Art Vannes?
PS - Sorry, on second try I only saw the made in Italy part in the more complete version of the label below. But that's really weird for an Italian label to use such an obvious French symbol! Is there some French - Italian connection in ownership there??
PPS - And I'm still convinced the other vase is either Gistl or Poschinger

Astrid