Louis Vuitton purses are the most copied purse out there and the most difficult to prove their authenticity. I can tell, but it is hard and you almost don't know for sure on this purse unless you buy it new. Just make sure it has the best metal trim, and emblazened metal hardware and the LV symbols are never chopped in the center of the LV, you will always be able to see the entire LV initial along the bottom of the purse before the stitching..