Human: What is the best way to determine the age of an antique vase? Assistant: 
The best way to determine the age of an antique vase is by researching its history and examining any marks or inscriptions on it. Additionally, you can look for clues such as the style of decoration used at the time and compare it to similar pieces from that era. Finally, if possible, consult with a specialist who may be able to provide further insight into the piece's origin and date.