Hi
What a lovely little vase
I am getting similar controlled bubble designs from my books by 'Conterie & Cristallerie' & 'Barovier & Toso' - thing is none are cased to inside with white like this.
I know that many Murano firms liked this white inner lining and it does look so Italian with the colour and the bubbles - just intuition, can't give you a name but I think it's Murano and a good manufacturer c 1950s
Adam P