How do I authenticate a Céline bag?

To authenticate a Céline bag, start by checking the date code. A correct one will start with one letter followed by two letters. This represents the factory code. Next, you will find four numbers. The first and third tell you the month of production, and the second and fourth stand for the production day. For example, a bag that says 0227 has a production date of February 27. Shop a selection of expertly vetted Céline bags on 1stDibs.