I see so many ads, articles, and questions about "bubbles" in bottles and other glassware. Many collectors of these items associate bubbles with age. I assure you, bubbles have NOTHING to do with age of any glassware whether it was made during Roman times up to the present. Admittingly, modern glass making techniques have eliminated these tiny or large air pockets from the molten batch of glass before going to the molds. I found a Dexter's Loveridge's bitters with so many bubbles that the bottle weighed about 2/3rds of what would be considered a normal specimen with the normal few air pockets /bubbles. Sometimes a profusion of bubbles does make a bottle more interesting, but I don't think a knowledgeable buyer would consider this feature a premium or a negative when he/she comes to purchasing.