How can you tell if a glass vase is vintage?

To tell if a glass vase is vintage, first research the maker. Look for markings on the inside and base, and then research them using trusted online resources to determine who produced your vase. By looking at when the maker was active and producing pieces similar to yours, you can typically roughly estimate its age. If your vase is between 20 and 99 years old, it is vintage. Vases that are 100 years old or older are antiques. For help with dating, consult a certified appraiser or knowledgeable antique dealer. On 1stDibs, find a collection of glass vases.