How to authenticate a Gucci handbag?

I have a very particular question, and I am new so I'm not sure if I'm posting in the right section, but I'm trying to figure this out. How do I go about authenticating a Gucci handbag? Since it is used, and appears to be vintage, I'm not sure what exactly to do. How do I match the serial numbers?

Hi Mary and welcome to the forum,

Not something I know much about personally, however this vid may be helpful

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With the rampant production of fake products from Asia, a lot of TV shows, social media pages and blogs dedicate spots showing how to spot fake and authentic items. Here is one blog post that discusses what to look for on bags before purchase.

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I hope this helps!