Purchase this here at an auction as an authentic bag. Red tag is of seller authentication and posh mark has confirmed there is no reason to believe this is not authentic even though the bag is missing an inside label. I purchased 2 for personal use and will only be keeping one. Although seller and posh is confirming this as authentic there is no authentication paper work. When attempting to authenticate on my own with the missing label I was told it could be authentic but they recommended i do not invest any more in trying to find out.