The Age of the Bottle While not all old bottles are valuable, an older bottle is more likely to be worth more than a newer one. Seams and pontil marks are two of the ways you can determine a bottles age. The pontil mark is the mark at the bottom of the bottle where it was attached to the glass blowers pontil rod.

What can you do with old bottles?

18 DIY Projects For Old Glass BottlesTurn a few bottles into some amazing vases for your flowers. DIY a spectacular bottle lamp. Use an old glass bottle to store all-purpose cleaner. DIY an etched wine bottle dish soap dispenser. Put together your own DIY bottle art. Make your own customized etched glass.More items •Sep 23, 2015