How can you tell a fake Chanel purse from the real thing?

I saw a cute Chanel bag in a shopping center which was only $ 47 dollars so I know it’s fake. Other than price, there is no way that other people will be able to notice? Yeah there’s nothing written on the envelope is a square bag with the logo on the left side and one of them is black and pink and the other is black and white. so that you can not really say, with the spelling, because nothing is written. thanks for the help

Karl_Lagerfeld: The most important thing is to do things, not to have done them.

Karl_Lagerfeld: The most important thing is to do things, not to have done them.

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