As a Chanel bags’s owner, we all know that when we first purchase Chanel leather goods from Chanel stores, each item comes with a Serial Number Sticker and a Control Number Card a.k.a Authenticity Card. The serial number sticker always matches with the Control Number Card.
Of course! Sometimes when the bag passes to a different owner, there is a chance that the previous owner loses the Control Number Card. Also, due to aging and wears, the Serial Number Sticker peels off itself. Moreover, if you repair the bag and replace the lining, the Serial Number Sticker will not be replaced on the new lining. It is very common to see a used Chanel bag without a Serial Number Sticker or/ and a Control Number Card, especially the vintage ones.
Without a Serial Number Sticker, the bag will depreciate, because not everyone can authenticate a Chanel item. You need a professional company with a history of dealing with Chanel items to authenticate it. With a 8-year-history of specializing in Chanel, we could authenticate simply from the pictures only. But it is not easy for everyone to authenticate, some buyers do not want to buy that because of the suspicion of the authenticity.


Starting in the Summer Season of 2021, Chanel upgraded the authenticity system to a simple metal bar inside of the bag. There is no more Serial Number Sticker and Control Number Card. The Metal Bar shows a ‘CC’ logo with a serial number.
Missing Control Number Cards or missing Serial Stickers will not be an issue anymore! The metal bar also can track the history of purchasing and repairing. It is like a digital coin that you can track history online. It becomes very convenient to every owner. You will no longer bring the receipt to repair the bag in the Chanel store, or worry that you lose the Control Number Card. This is a game changing for Chanel.
